2 Answers

# In the diagram above, L1 is parallel to L2. Find the value of PMT

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A. 36°

B. 72°

C. 82°

D. 118°

C

## SOLUTION…

The sum of total angles on a straight line = 180 degrees.

From the diagram, 62 + (2y + 10) + y = 180

62 + 2y + 10 + y = 180

3y + 72 = 180

3y = 180 – 72

3y = 108

Therefore, y = 108/3 = 36 degrees

Therefore, angle PMT = 2y + 10 = 2(36) + 10 = 72 + 10 = 82 degrees

### Now for the right answer to the above question:

1. Option A is incorrect.
2. Option B is incorrect.
3. C is correct.
4. D is not the correct answer.

## QUICK TIPS…

You may please note these/this:

• Always remember that the sum of total angles on a straight line = 180 degrees.
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/ culled from 2016 JAMB-UTME mathematics past question 8 /

##### In the diagram above, L1 is parallel to L2. Find the value of PMT » QuizTablet

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