Question
The area of a square is 42 sq. cm more than the area of
a rectangle of length 21 cm and breadth 19 cm. What will be the area of incircle of the square? MTSolution
The area of rectangle = l × b = 21 × 19 = 399 sq. cm The area of square = 399 + 42 = 441 sq. cm The side of square = √441 = 21 cm Radius of incircle of a square = side = 21/2 = 10.5 cm
The volume and height of a cylinder are 2662 cm3 and 7 cm. Find the radius of the cylinder.
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If the area of a rhombus is 14504 m² and the ratio of the diagonals is 37:49 then find the length of the shorter diagonal.
