Question

An angle measures 40° less than the measure of its supplementary angle. What is the measure of each angle? please hlpppppp

Answer 1

110 and 70

Explanation:

Two supplementary angles add up to 180°

Suppose x + y = 180 and y = x - 40

first we substitute y by x - 40 in the equation x + y = 180 ,we get:

x + (x - 40) = 180

then

2x - 40 = 180

then

2x = 180 + 40

= 220

then

x = 220/2

= 110

therefore

y = 110 - 40

= 70