Question

the diagonals of a rectangle measure 25 cm. if the length and breadth of the rectangle are in the ratio 3:4 find the area of the rectangle​

Answer 1

Answer:

→ 70 cm²

Step-by-step explanation:

→ length=4x

→ breadth=3x

→ a² + b² + c²

→ 25² = (4x)² + (3x)²

→ 625 = 16x² + 9x²

→ 625 = 25x²

→ x² = 625/25

→ x² = 25

→ so,

→ length = 4x = 4 × 5 = 20cm

→ breadth = 3x = 3 × 5 = 15cm

→ perimeter = 2 (l+b)

= 2 (20+15)

= 2 (35)

= 70cm²

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