A rectangle has a perimeter 50cm and its length is 15cm. What is the breadth?

The perimeter of a rectangle is calculated using the formula P = 2 * (length + breadth). We are given the perimeter (P = 50 cm) and the length (L = 15 cm), and we need to find the breadth (B).

• Substitute the given values: 50 = 2 * (15 + B).
• Divide by 2: 25 = 15 + B.
• Subtract 15 from both sides: B = 25 - 15.
• Correct Option A: 10. The breadth is 10 cm.
• Option B: 12 would result in a perimeter of 54 cm.
• Option C: 8 would result in a perimeter of 46 cm.
• Option D: 7 would result in a perimeter of 44 cm.