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nlexa [21]
4 years ago
12

Can someone help me learn to solve this?

Mathematics
1 answer:
kondaur [170]4 years ago
5 0

Answer:

x = 110°

Step-by-step explanation:

Given that AB = AD then Δ ABD is isosceles and the base angles are congruent, that is

∠ ABD = ∠ ADB = 35°

The sum of the 3 angles in the triangle = 180°, that is

x + 35° + 35° = 180°

x + 70° = 180° ( subtract 70° from both sides )

x = 110°

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Our answer is A.

8 0
3 years ago
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