WAEC Mathematics 2018 Objective — Question 21
Question 21 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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If M and N are the points (−3, 8) and (5, −7) respectively, find |MN|.
- A. 8 units
- B. 11 units
- C. 15 units
- D. 17 unitsCorrect
Explanation
|MN|=√[(−3−5)²+(8+7)²]=√(64+225)=√289=17 units.
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