# Which equation can be used to solve for b?

b = (8)tan(30º)

b = 8/tan(30º)

b = (8)sin(30º)

b = 8/sin(30º)

**Solution:**

Using the law of tangents

tanθ = opposite side/ adjacent side

From the figure we know that,

tan(30º) = b/8

b = 8tan(30**º**)

Therefore, the equation b = (8)tan(30**º**) can be used to solve for b.

## Which equation can be used to solve for b?

b = (8)tan(30º), b = 8/tan(30º), b = (8)sin(30º), b = 8/sin(30º)

**Summary:**

The equation which can be used to solve for b is b = (8)tan(30**º**).

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