Question

Any help would be appreciated!

Answer 1

2/CD = 4/ 7

Then CD = 7/2 = 3.5

CD = 3.5/ 1

Explanation:

Two triangles are similar ACD & ABE

So

2/CD = 4/ 7

Then CD = 7/2 = 3.5

CD = 3.5/ 1

Answer 2

Answer: 3.5m

Explanation:

We can set up a proportion to help us solve this question. The triangle with side lengths of 4m, 4m, and 2,m is similar (proportional) to the triangle with side lengths of (4m + 3m), (4m + 3m), and ?m.

Given:

`\displaystyle (4m)/(2m) =(4m+3m)/(?)`

Addition:

`\displaystyle (4m)/(2m) =(7m)/(?)`

Cross-multiply:

4m * ? = 2m * 7m

?4m = 14m

Divide both sides of the equation by 4:

? = 3.5m