Question

Help with Alg2. Please explain how.

Answer 1

c = 14.43 units to the nearest hundredth.

Explanation:

We are given 2 sides and the included angle so we use the Cosine Rule.

c^2 = a^2 + b^2 - 2absinC

= 20^2 + 17^2 - 2.29.17cos45

= 208.17

c = √208.167

= 14.43.