Question

explain in step by step​

Answer 1

We know that a line has 180°.

.°. x + 130° = 180° ( linear pair )

x = 180 - 130

= 50°

We know that the sum of interior angle of triangle is 180°.

.°. y + 50° + 58° = 180°

y + 108° = 180°

y = 180 - 108

= 72°

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