The cosine of an angle is .28. find the sine of the angle.

Given: A triangle QRS

Solution: 1.The side opposite ∠Q is RS.→True

2.The side opposite ∠Q is RQ.→False

3.The hypotenuse is QR.→ False,as not given which kind of triangle it is , and if it is a right angled triangle which angle is of 90°.

4.The side adjacent to ∠R is SQ.→False ,There are two adjacent sides adjacent to ∠R which are QR and RS.

5.The side adjacent to ∠Q is QS.→True, but there is also another side adjacent to ∠Q which is QR.