Question

URGENT HELP
Pqr is an isosceles triangle and prs is a straight line

Answer 1

∠ QRS = 132°

Explanation:

Since the triangle is isosceles then the 2 base angles are congruent, that is

∠ PQR = ∠ PRQ =
`(180-84)/(2)` =
`(96)/(2)` = 48°

∠ PRQ and ∠ QRS are adjacent angles , so

∠ QRS = 180° - 48° = 132°