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alexandr1967 [171]
3 years ago
15

Find the values of x and y

Mathematics
1 answer:
Sergio [31]3 years ago
7 0

Answer:

x = 90 and y = 43

Step-by-step explanation:

Since AB = AC then the triangle is isosceles and AD is a perpendicular bisector, thus

x = 90

and the base angles are congruent, thus ∠B = ∠C = 47

The sum of the angles in a triangle = 180°

Subtract the sum of the known angles from 180 for value of y

y = 180 - (90 + 47) = 180 - 137 = 43

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