Question

Solve triangle ABC if a = 15, c = 18, and m angle C = 68°.

A) m angle A ≈ 50.6°, m angle B ~ 61.4° m angle C= 68°, a = 15, b ≈ 16, and c = 18

B) m angle A ≈ 68°, m angle B ~ 61.4° m angle C =50.6°, a = 15, b ≈ 18, and c = 17

C) m angle A≈ 50.6°, m angle B ~ 61.4° m angle C = 50.6°, a = 15, b ≈ 17, and c = 18

D) m angle A ≈ 61.4°, m angle B ~ 50.3° m angle C = 68°, a = 15, b ≈ 14, and c = 18

Answer 1

use cosine law

Answer 2

how do i solve it to get the answer

Answer 3

http://www.mathsisfun.com/algebra/trig-cosine-law.html

Answer 4

c2 = a2 + b2 − 2ab cos(C)

Answer 5

would the answer be C

Answer 6

did u try solving it?

Answer 7

@mathmath333

Answer 8

@ganeshie8

Answer 9

@perl