# Rectangle #atozchallenge

So, let’s review what we learned about shapes back when we were in grade school. The rectangle, like the one you see above, consists of two sets of parallel sides (AB || CD and AC || BD) and all the interior angles (A, B, C, and D) are 90°. AB = CD and AC = BD. If all four sides are of equal length, you have a square.

If a figure has two sets of parallel sides but the angles are not equal to 90°, you have a parallelogram.

And if all four sides of your parallelogram are equal, you have a rhombus.

If you have a four-sided figure where two of the sides are equal, that’s a trapezoid.

All of these figures are called quadrilaterals (from the Latin meaning "four sides") as are figures like this one:

There will be a test later on this material. Pray for a fire drill.

## 53 thoughts on “Rectangle #atozchallenge”

1. Ruby Manchanda says:

Fun with shapes.

Welfare unto all
Rab rakha

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1. I can’t promise drawings on those… thanks for stopping by!

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2. Dude, do you know how long its been since I took Algebra and FAILED MISERABLY! All that stuff was all greek to me and I just couldn’t catch on. 😦 Just sounds like another language to me. Sorry! DAM YOUR SMART! What is it you DON’T KNOW?????

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1. Algebra diden’t give me trouble. Geometry, on the other, completely baffled me.

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3. What a shapely post. I feel like such a square with my punny comment. I’ll have to circle back another day to think of something better to say. Gotta level the plane by stopping now.

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4. Those are very inneresting shapes and now I know their names. I learn something every time I visit.

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5. What a fun post! Brought back wonderful memories. After shapes I was kinda of always catching up to understand next level math. Grammar school is about my speed. lol

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1. I was a math major my first year or so in college, then real analysis ended that. Geometry was a total mystery to m, oddly enough…

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6. Ellen Pilch says:

Well done. I don’t think I could pass the test 🙂

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7. Geometric shapes are so fun! I can never remember what they are called, though. I’ve always loved the reassuring perfection of circles, triangles & squares, but all shapes are fun and thought-provoking. I wonder what our favorite shapes say about us…I’m sure that there is a quiz for that somewhere. 🙂 Thanks for the refresher!
https://atozwriting.blogspot.com/

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8. As long as we don’t get the alphabet involved, I’m good with math. Otherwise… fire drill it is!

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1. I knew it was time to major in something other than math when it all stopped being about numbers…

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1. The image yes, yet a lot of the time I’m more likely to be classed as inappropriate.

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9. Looks like a fun pasttime, trying to figure those puzzles out.

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1. I just drew the shapes. There’s no puzzle involved, unless you’d like to make one up.

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1. Those don’t take programming formulas to do?

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1. No, I just drew them freehand with Inkscape and they did all the figgerin’.

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10. Kim @ Storms and Stardust says:

Math was NEVER my thing, and I never made above a C once we moved out of the basic four operations. I can identify the shapes well enough, but figuring out angles – well, I can probably do that, too. But once we reach algebra, and letters get added to the math, I’ll be praying for that fire drill, for real.

Kim

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11. “Pray for a fire drill?” I’ve got a lighter and I ain’t afraid to hold it up to the nearest sprinkler! 😛 Interesting walk through some admittedly difficult concepts (for me. Hello. I’m math(s) challenged!) 🙂

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1. Geometry threw me. I knew what the figures were, though…

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12. Ha ha. we’ve been doing a lot of number puzzles this week, more algebra based but still fun. Will be interested to see what words you come up with for the tricky letters.

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1. I found that adding the “re-” prefix before the letter made even q, x, and Z simple.

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13. I agree with Tasha, I like the word rhombus but couldn’t have told you what it meant. Thanks for the info.

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14. Jack Connelly says:

Just a few days ago I was doing a crossword puzzle and one of the hints was “four sided figure.” I was stumped. I had to look it up. The answer was RHOMBUS. If I read your post before I did the puzzle I would have nailed it!

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1. See, you have just held out a couple of days…

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15. Fascinating and stuff I’d forgotten about.

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1. So had I… I had to relearn it to write that. I couldn’t remember what figure was what name.

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16. With the diagrams, you just explained something to me I finally get..but I will still love that firedrill

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1. That was an example of a picture being worth a thousand words.

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17. I love math posts, John and my favorite ares of math was geometry. Thanks for the angled looks. I’m ready for the test.

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1. I was horrible in geometry. I think I owed points on the final.

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1. Geometry was the only time in school I finished with an average over 100. The teacher always included a bonus question and I always got that, too.

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18. A test!! Ok 😉 In French, a square is a “carré” (just because I don’t understand why your 3rd letter is R ;)) )
C is for Colour

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1. All of my words this year start with “re” followed by the letter of the day and the rest of the word., i.e. reAdy, reBate, reCtangle etc.

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1. Inkscape is a pretty handy graphics tool, once I figured out how to do what I needed.

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19. help, mind-blowing! glad i will be teaching pre-kindergarten math this morning. )

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20. I knew all those words, but had forgotten exactly what each meant. I’ve always liked the word rhombus. personally.
Tasha 💖
Virginia’s Parlour – The Manor (Adult concepts – nothing explicit in posts)
Tasha’s Thinkings – Vampire Drabbles

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1. “Help me, Rhombus, help help me, Rhombus…” I’m fond of quadrilateral, myself, and icosahedron (like a 20-sided die you use in role-playing games).

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