Question

find the value of × in the following figure​

Answer 1

Answer:

90+x = 130 (exterior angle property)

x = 130-90

x=40

Answer 2

According to the exterior angle property of triangle,

The exterior angle is the sum of the two interior angles opposite to it.

That is why,

x° + 90° = 130°

x° = 130° - 90°

x° = 40°

Hope it helps