Question

Solve number 20traingle ABC with C=90 slove for the missing partPLEASE HELP!!​

Answer 1

Answer:

A ≈ 69.5°

Step-by-step explanation:

Given the triangle is right use the cosine ratio to find A

cosA = $\frac{adjacent}{hypotenuse}$ = $\frac{AC}{AB}$ = $\frac{2.7}{7.7}$, thus

A = $cos^{-1}$ ( $\frac{2.7}{7.7}$ ) ≈ 69.5° ( to 1 dec. place )