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3 years ago

What is the degree of (2x + 45)

Mathematics

1 answer:

lesya692 [45]3 years ago

5 0

Answer:180 degrees

Step-by-step explanation:Let "x" be the measure of the angle the problem is asking for.

"when twice of a angle is added to 45" is the angle (2x+45) degrees.

The problem says that the angle (2x+45) is the supplement to the given angle.

It means that

x + (2x + 45) = 180 degrees. <<<---=== This equation is the exact meaning of the condition.

Simplify and solve this equation for x:

3x + 45 = 180 ====> 3x = 180 - 45 = 135

====> x = 135/3 = 45 degrees.

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