The figure shows a big right triangle that was divided into three small triangles. The angles were all given in the big right triangle. In the figure, you can see that angle MQP is equal to 56 degrees. Using a scientific calculator, sin 56 degrees is equal to 0.869.
For this case we must observe the MQP triangle. We observe the vertex Q of the mentioned triangle. We note that the angle is given by: ∠MQP = 56 From here, we look for the value of the sine of the angle. We have then: sine (∠MQP) = sine (56) sine (∠MQP) = 0.829 Answer: The value of sine (∠MQP) is 0.829