Thursday

April 24, 2014

April 24, 2014

Posted by **brendon** on Monday, March 16, 2009 at 7:25am.

below

Q. Add one or more lines to make these shapes rigid.

1) square

2) rectangle

3) issoceles

4) pentagon

5) trapezium

6) octagon

Thank you very much.

- maths -
**Damon**, Monday, March 16, 2009 at 11:39amMake them into a bunch of triangles with interior lines. Triangles do not change shape once the length of the three sides is fixed. (side,side,side --->congruent)

For example once you draw one diagonal in a square, it is split into two triangles and will not squish into a parallelogram.

This is not just theory. It is how you build bridges and buildings.

- maths -
**mIA**, Monday, March 16, 2009 at 1:15pmCan you tell me how to turn a percentages into a fraction?

- maths -
**Reiny**, Monday, March 16, 2009 at 2:49pmmIA, don't tag new questions on the end of other problems, start a new post.

percent means per centum or per hundred

so whatever the percentage number is, divide it by 100, then reduce to lowest terms if needed.

e.g.

35% = 35/100 = 7/20

7% = 7/100

12.3% = 12.3/100 = 123/1000

**Related Questions**

elementary - Using each of the shapes in the box, draw a shape that is worth $6....

Elem. ED. - Art and math are being integrated when students: 1. draw more than 1...

Math HElP!!!!!!!! - A group of students decided to look at rectangles that are ...

Math I really need help! - http://www.jiskha.com/display.cgi?id=1165286122 A ...

AED / ASAP PLEASE 2 - Review the experienced teacher’s lesson plan in Figure 3.3...

Math (Shapes) - How can teaching children the 4 basic shapes (circle, triangle, ...

Math (dont want ans just help figuring this out) - Length of one Total # of # of...

visual - "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner. ...

visual - "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner. ...

art - The Visual Elements: "Street, Dresden", 1907, oil on canvas by Ernst ...