I need help finding the lentlgth form a to c.​

Hi there!

AC is the hypotenuse, so we can use a trig formula to solve.

We are given the adjacent side, AB, so we must use cosine. Recall that:

cosθ = A/H

Thus:

cos(21.3) = 450 / H

Rearrange:

H = 450 / cos(21.3)

Use a calculator to evaluate:

H = 482.99 ≈ 483 ft.

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol