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8. Lines and Angles
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Q8 of 115 Page 9

If the angles (2x-10)° and (x-5)° are complementary angles, find x.

Given that,

(2x – 10)o and (x – 5)o are compliment angles.


Let x be measured angle


Since, angles are complimentary


Therefore,


(2x – 10)o + (x – 5)o = 900


3x – 15o = 90o


x = 35o


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6

Two supplementary angles differ by 48°. Find the angles.

7

An angle is equal to 8 times its complement. Determine its measure.

9

If the complement of an angle is equal to the supplement of the thrice of it. Find the measure of the angle.

10

If an angle differs from its complement by 10°, find the angle.

Questions · 115
8. Lines and Angles
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