puppyisabella4 puppyisabella4

26-05-2021
Mathematics

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osceres
33. What is mZA?
А.
12°
• 48°
с
-B
A 12°
C 48°
B 36
D 50°

osceres 33 What is mZA А 12 48 с B A 12 C 48 B 36 D 50 class=

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sreedevi102 sreedevi102

26-05-2021

Answer:

∠B = 12°

∠C = 180 - 48° = 132° ( straight line angle = 180)

Sum of angles of a triangle = 180°

180 = ∠A + ∠B + ∠C

180 = ∠A + 12 + 132

180 - 144 = ∠A

∠A = 36°

option B

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