ellamai16 ellamai16

13-01-2019
Mathematics

contestada

In triangle ABC, find B, to the nearest degree, given a = 7, b = 10, and C is a right angle.

In triangle ABC find B to the nearest degree given a 7 b 10 and C is a right angle class=

Respuesta :

jimrgrant1 jimrgrant1

13-01-2019

Answer:

55°

Step-by-step explanation:

Since ΔABC is right we can use the tangent ratio to find ∠B

tanB = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{10}{7}[/tex], hence

B = [tex]tan^{-1}[/tex]([tex]\frac{10}{7}[/tex]) = 55°

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netflixacc0107 netflixacc0107

19-01-2019

The correct answer is D 55.

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