Question

1. If cosA=21/29, what is the perimeter of the triangle?

2. If sinA=10/26, what is the perimeter of the triangle?

3. If tanA=15/8, what is the perimeter of the triangle?

4. If cosA-12/37, what is the perimeter of the triangle?

5. If tanA-12/16, what is the perimeter of the triangle?

Answer 1

Explanation:

For each one, solve for the missing side, x, then add all sides together to get the perimeter, P.

1) x = √(29² - 21²) = 20

P = 21+29+20 = 70

2) x = √(12² - 10²) = 6.63

P = 10+26+6.63 = 42.63

3) x = √(8² + 15²) = 17

P = 8+15+17 = 40

4) x = √(37² - 12²) = 35

P = 12+35+37 = 84

5) x = √(12² + 16²) = 20

P = 12+16+20 = 48