Question

Find the measure of angle T to the nearest degree.

Answer 1

Answer:

The answer is option 2.

Step-by-step explanation:

You have to use Cosine Rule, cosθ = adjacent/hypotenuse. Substitute the following value into the formula :

$\cos(θ) = \frac{adj.}{hypo.}$

Let θ = T,

Let adj = 7.5,

Let hypo = 19.5,

$\cos(T) = \frac{7.5}{19.5}$

$T = { \cos( \frac{7.5}{19.5} ) }^{ - 1}$

$T = 67° \: \: (near. \: degree)$