Question

A triangular piece of metal PQR is such that the angle RPQ=61∘, length QR=13.1 mm, and length PQ=7.2 mm. Find the size of the angle PQR, correct to 1 decimal place.

a. 28.4∘
b. 31.9∘
c. 49.7∘
d. Not Mentioned

Answer 1

The size of angle PQR is 119 degrees.

Step-by-step explanation:

To find the size of angle PQR, we can use the fact that the angles in a triangle add up to 180 degrees. So we can subtract the given angle RPQ from 180 to find angle PQR.

180 - 61 = 119 degrees

Therefore, the size of angle PQR is 119 degrees.