Question 32
Triangles and QuadrilateralsIn the diagram above, find h
- A.12/7 cm
- B.12/7 √6cm
- C.7/12 cm
- D.½ √51cm
Show the answer and explanation
Answer: B (12/7 √6cm)
Explanation
Heron's formula: s = (6 + 5 + 7)/2 = 9 and area = √(9 × 3 × 4 × 2) = 6√6. Area = ½ × 7 × h, so h = 12√6/7 cm.