If the height of a triangle is increased by 20% and the base is increased by 12%. What is the new area (in cm2) if the old area of the triangle was 200 cm2?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 268.8.
Old area = 200 cm²
Height increases by 20% → multiply by 1.20
Base increases by 12% → multiply by 1.12
New area = 200 × 1.20 × 1.12 = 268.8 cm²