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Question

The measure of the supplement of A is 40 degrees larger than twice the measure of the complement of angle A. What is the sum of the measures of the supplement and complement of angle A?

A
190
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B
120
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C
170
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D
180
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Solution

The correct option is A 190
Let angle A be x.

The supplement of angle A=(180x)

The complement of angle A=(90x)

From the condition, the supplement of angle A is 40 more than twice the measure of complement of angle A.
180x=2(90x)+40
180x=1802x+40

2xx=180180+40
x=40

Supplement of A=180x=18040=140

Complement of A=90x=9040=50

The sum of supplement and complement of angle A=140+50=190

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