Question

class 10th...Triangles chapter​

Answer 1

Answer:

• 96 cm².

Step-by-step explanation:

We know,

• Ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides.

Hence,

area of ΔABC / area of Δ DEF = BC² / EF²

⇒ 54 / area of Δ DEF = 3² / 4²

⇒ 54 / area of Δ DEF = 9/16

⇒ area of Δ DEF = 54 × 16/9

• 96 cm²

∴ Area of Δ DEF = 96 cm².

Answer 2

Answer:

4 / area of Δ DEF = 3² / 4²

⇒ 54 / area of Δ DEF = 9/16

⇒ area of Δ DEF = 54 × 16/9

96 cm²

Step-by-step explanation: