Question

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Answer 1

45 degrees

Explanation:

There are 180 degrees in a triangle, so

x + y + 90 = 180.

But x = y so we can write 2x + 90 = 180.

2x = 180 - 90

2x = 90

x = 45

Answer 2

It's b, 45 degrees

Explanation:

1) 180-90 = 90

20 90 divided by 2 = 45