Question

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Answer 1

X=40
Y=70.
Z=70. They must add up to 180

Answer 2

A. 40°

Explanation:

As we can see it is an isosceles triangle because two sides are equal. so Base angles of an isosceles triangle are equal. Then Now.,

70° + 70° + <X = 180° {Being sum of angles of triangle }

140° + < X = 180°

< X = 180° - 140°

< X = 40°

Hope it will help :)❤