Two sides of a triangle are 12.8 m and 9.6 m. If the height of the triangle is 12 m, corresponding to 9.6 m, then what is its height (in cm) corresponding to 12.8 m?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 9

Area of a triangle = 1/2 × Base × Height
Let the height of the corresponding side 12.8 m be h
1/2 × 9.6 × 12 = 1/2 × 12.8 × h
⇒ (9.6 × 12)/12.8 = h
⇒ h = 9 m