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5 votes
Which equation can be used to solve for b?
B
5 cm
10 cm
30°

1 Answer

4 votes

The Question is Incomplete The complete question with figure is below.

Answer:

Therefore the equation to solve for b is


\tan 30 = (5)/(b)

Explanation:

Given:

In Right Angle Triangle ABC

∠C = 90°

BC = 5 cm

AB = 10 cm

∠A = 30°

To Find:

b = ?

Solution:

In Right Angle Triangle ABC Tangent identity we have


\tan A = \frac{\textrm{side opposite to angle A}}{\textrm{side adjacent to angle A}}

Substituting the values we get


\tan 30 = (BC)/(AC)\\\\\tan 30 = (5)/(b)

Therefore the equation to solve for b is


\tan 30 = (5)/(b)

Which equation can be used to solve for b? B 5 cm 10 cm 30°-example-1
User Justin Makeig
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