Find the missing angle.
Round to the nearest whole degree.

θ = 37°

Step-by-step explanation:

The missing angle is θ

cos θ = 4/5

cosθ = 0.8

cos^(-1)(0.8) = 36.86≈ 37°

so θ = 37°

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

2,160 π

step-by-step explanation: