Find the length of x, round too the nearest tenth

Step-by-step explanation:

take 72 degree as reference angle

using cos rule

cos 72=adjacent/hypotenuse

0.30=4/x

x=4/0.30

x=13.33

x=13.3

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

#faazmessi

x = -2

y = 848

step-by-step explanation:

plug in the numbers