Question

Help need this asap!

Answer 1

Ans 16: (361π cm²)

d=19 cm

SA(sphere) = 4πr²

= 4π(d²/4)

= πd²

= 361π cm² (1134.1149 approx.)

Ans 17:

By Pythagorean Theorem, Hypotenuse = 13 units

sinθ = 5/13 (0.3846 approx.)

cosθ = 12/13 (0.923 approx.)

tanθ = 5/12 (0.4167 approx.)