Subject
Quantitative Aptitude
Topic
Areas & Volumes
The perimeter of a square is equal to twice the perimeter of a rectangle of length 8cm and breadth 7cm. What is the circumference of a semicircle whose diameter is equal to the side of the square ?
The perimeter of a square is equal to twice the perimeter of a rectangle of length 8cm and breadth 7cm. What is the circumference of a semicircle whose diameter is equal to the side of the square ?
ক)
55.12 cmখ)
22.54 cmগ)
42.51 cmঘ)
38.57 cmExplanation
We know that perimeter of rectangle = 2(l+b) = 2(8+7)= 30cm Given perimeter of square is twice the perimeter of rectangle = 2(30) = 60cm Therefore, side of the square is = 1/4 x 60 = 15cm Circumference of the required semicircle = = = 23.57 + 15 = 38.57cm.Related questions
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