App Logo

No.1 PSC Learning App

1M+ Downloads
The length of a rectangle is three-fifth of the radius of a circle. The radius of the circle is equal to the side of a square, whose area is 6400 m2. The perimeter (in m) of the rectangle, if the breadth is 15 m, is:

A160

B120

C126

D180

Answer:

C. 126

Read Explanation:

Area of square = (Side)² = 6400

Side² = 6400

Side = √6400 = 80

Radius of cirlce = Side of square = 80 m

Length of rectangle = 3/5 × 80 = 48 m

Perimeter of the rectangle = 2(Length + Breadth) = 2(48 + 15) = 126


Related Questions:

ഒരു ഘനത്തിന്റെ വികർണ്ണം 8√3 സെ.മീ. ആണ്. ഘനത്തിന്റെ വ്യാപ്തം എത്രയാണ്?

If the side of a square is 12(x+1)\frac{1}{2} (x + 1) units and its diagonal is 3x2\frac{3-x}{\sqrt{2}}units, then the length of the side of the square would be

The radius of circle is so increased that its circumference increased by 10%.The area of the circle then increases by?
The areas of a square and a rectangle are equal. The length of the rectangle is greater than the length of any side of the square by 5 cm and the breadth is less by 3 cm. Find the perimeter of the rectangle.
In a triangle, if the longest side has length 15 cm, one of the another side has length 12 cm and its perimeter is 34 cm, then the area of the triangle in cm2 is: