Same chapter3 marksDifficulty: Medium
Two similar triangles have areas 36 cm2 and 64 cm2. If the perimeter of the smaller is 27 cm, find the perimeter of the larger.
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3 marksDifficulty: Medium
In triangle ABC, D and E are points on AB and AC such that DE is parallel to BC. If AD : DB = 2 : 3 and the area of triangle ADE is 16 cm2, find the area of triangle ABC.
Original Khojo Papers practice question — not from a past board paper.
Answer
100 cm2
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
AD : AB = 2 : 5, and triangles ADE and ABC are similar, so their areas are in the ratio 4 : 25. Hence the area of ABC is 16 × 25 ÷ 4 = 100 cm2.
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