Question

What is the length of AB ?
a) 5
b) 20
c) 15
d) 30

please help ! the picture is below

Answer 1

Is it a right triangle?

Answer 2

yes

Answer 3

How is this a right triangle? This has more of an acute angle rather than a right angle.

Answer 4

not enough information

Answer 5

given area ABC=30
area AYX=7.5
XY || CB

Answer 6

Is the answer of 20 correct?

Answer 7

im actually not sure

Answer 8

Let me just tell you how I got it:
I wrote a proportion of the length of the sides to the area of th triangles. That makes for the AXY triangle to be 5/7.5=x/30.

Solve for x and you get 20.

Answer 9

ohh yeah that makes sense lol thankyou :)

Answer 10

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