Question

Triangle QRS is a right triangle with the right angle at vertex R. The sum of mangle Q and mangle S must be a. equal to 45° b. greater than 45° and less than 90° c. equal to 90° d. greater than 90° and less than 180°

Answer 1

the sum of the angles of a triangle = 180°.

if angle R is right-angled, it measures 90°.

the sum of angles Q and S must be equal to 90°.

Explanation: