Question 43
Mensuration of Plane ShapesΔMNP is an isosceles triangle with |MN| = |MP| = 26 cm and |NP| = 20 cm. Find the area of the triangle
- A.260 cm2
- B.240 cm2
- C.220 cm2
- D.180 cm2
Show the answer and explanation
Answer: B (240 cm2)
Explanation
The height from M bisects NP: h = √(26² − 10²) = 24 cm. Area = ½ × 20 × 24 = 240 cm².