Find the measure for ∠LQR. A) 126° B) 129° C) 131° D) 133°
Attachments:
Answers
Answered by
0
Answer:
126°
Step-by-step explanation:
∠LQX = ∠MQR
⇒90 - 12b = -3b + 63
⇒ 90 -63 = -3b + 12b
⇒ 27 = 9b
⇒ 27 / 9 = b
⇒ b = 3
∠LQR + ∠LQX = 180° ( supplementary angles)
⇒ ∠LQR + 90 - 12b = 180°
⇒ ∠LQR + 90 - 12 x 3 = 180°
⇒∠LQR + 90 - 36 = 180°
⇒∠LQR + 54° = 180°
⇒ ∠LQR = 180° - 54°
⇒ ∠LQR = 126°
option A
Similar questions