Question

The sulppmentry angle of an angel is 20°less than it. find the angle​

Answer 1

Step-by-step explanation:

Complementary angles are those whose sum is 90°.

So, let the required angle be x, its complementary will be (90-x), then according to question

(90 - x) - x = 20

=> 90 - 2x = 20

=> 2x = 70

=> x = 35°

Hope it helps.

Cheers !

Answer 2

Answer:

100°

Step-by-step explanation:

x + x + 20 = 180.

⬇️

x = 80 degrees, this is the angle.

⬇️

The supplement is 180 - 80 = 100 degrees.

⬇️

80 degrees + 20 degrees = 100 degrees,

⬇️

so this does check.