Answer:
x = 5 cm
Step-by-step explanation:
We can use proportions of similar triangles. Put the side of the small triangle over the same side of the large triangle
x 4
---------- = -----------
40 32
Using cross products
32x = 4*40
32x = 160
Divide by 32
32x/32 = 160/32
x=5
x=5cm
40/x=32/4
cross multiply
32x=160
divide by 32 on bothi sides
32x/32=160/32
