# One leg of a right triangle is 16 and the hypotenuse is 54. What is the measure of the angle adjacent to the side.

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The length of one side of the right triangle is equal to 16 and the length of the hypotenuse is equal to 54.

Let the angle adjacent the side be denoted by X.

`cos X = 16/54 = 8/27`

`X = cos^-1(8/27)`

=> `X ~~ 72.76` degrees

**The measure of the angle adjacent to the side with length 16 is approximately 72.76 degrees.**

Let us take the right angle triangle ABC , where angle B= 90 degree.

Then according to the question One leg i.e side BC=16 and the

hypotenuse AC= 54. We require to find the measure of angle ACB.

Let angle ACB = x.

Let us take cosine of the angle ACB i.e cos(x).

We know that cosine of an angle A i.e. cos(A) = base/hypotenuse

Applying this we get :

cos(x) = BC/AC = 16/54 = 8/27 = 0.2963

Since cos(x) = 0.2963

hence, **x = 72.6 degrees <---Answer**

Take ABC traingle

B is 90 degreee

AC = 54

BC= 16

Then the required angle(say x) is between AB and AC

Cos (x)= BC/AC

(x) = Cos inverse (BC/AC)

(x) = Cos inverse (0.2963)(x) =72.6 degree**So the answer is 72.6 degree**