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3 years ago

HELP

Mathematics

1 answer:

love history [14]3 years ago

8 0

Answer:

48.5654 degrees to the nearest ten thousandth.

Step-by-step explanation:

We can use the cosine rule to do this

First find m < C:

45^2 = 34^3 + 34^2 - 2.34.34 cos C

Cos C = [45^2 - (34^3 + 34^2 )] / (-2312)

= -287 / -2312

= 0.1241349

m < C = 82.8692 degrees

Therefore m < B = 180 - 82.8692) / 2 (as ABC is an isosceles triangle).

= 48.5654 degrees

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