Plz help me
I really appreciate it

a = 45°

Step-by-step explanation:

In triangle PSR

PS = RS (Given)

angle SPR = angle SRP (isosceles triangle property)

Let angles SPR and SRP be x

Therefore, 90° + x + x = 180° (angle property)

=> 90° + 2x = 180°

=> 2x = 180° - 90° = 90°

=> 2x = 90°

=> x = 90° ÷ 2 = 45°

=> x = 45°

Hope it helps:)

v: l•w•h÷2.

v: 20•6•8 ÷2

v: 960÷2

v: 480

47 - 90 = 43

43 - 180 = x

x = 137