Question

An angle is 40° less than its supplement. Find the angle and its supplement​

Answer 1

Answer:

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Let the angle=x

supplementary angles are those whose sim is 180°.

40°+x=180°

x=180°-40°

x=140°

Supplement of 40° is 140°

Answer 2

Step-by-step explanation:

Let x be the angle.

Supplement angle of x= (180-x)

x = (180-x) - 40

x = 180-x-40

x = 140-x

x+x = 140

2x = 140

x = 140/2

x = 120

Supplement angle of 120 = 180-120

= 60