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maria [59]
3 years ago
15

The measure of the supplement of an angle is 36 less than the measure of the angle. Find the measures of the angles.

Mathematics
1 answer:
-BARSIC- [3]3 years ago
5 0

Answer:

∠1 → 108

∠2 → 72

Step-by-step explanation:

Supplementary angles add up to a total of 180° (two angles is a pair). So:

∠1+∠2=180°

∠1 → supplement

∠2 → 36 less than the supplement

Create an equation, using x as angle 1 and y as angle 2:

x+y=180

Insert the given values:

x+(x-36)=180

Solve for the value of x. Simplify parentheses:

x+x-36=180

Simplify addition:

2x-36=180

Add 36 to both sides:

2x-36+36=180+36\\\\2x=216

Isolate the variable. Divide both sides by 2:

\frac{2x}{2}=\frac{216}{2}\\\\  x=108

The value of x is 108. Insert this into the equation above:

x+y=180\\\\108+y=180

Solve for y. Subtract 108 from both sides:

108-108+y=180-108\\\\y=72

The value of y is 72.

Therefore:

∠1 → 108

∠2 → 72

:Done

*Check:

Insert the values into an equation set to 180 to determine if true:

108+72=180\\\\180=180

Subtract 108 by 72 to see if the difference is 36:

108-72=36\\36=36

The given values are true.

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