Question

In △ABC, m∠A=45°, c=17, and m∠B=25°. Find a to the nearest tenth. law of sines 4

Answer 1

Answer:

12.8

Step-by-Step Explanation:

In triangle ABC, m<A=45, c=17, and m<B=25.

so m<C = 180-(45+25)=180-70=110

using law of sin

sin A/ a = sin C/c

sin 45/ a = sin 110 / 17

sin 45/ (sin 110/17) = a

0.707 / 0.055 = a

12.79 =a

12.8 =a

so answer is 12.8