Q61. If the diagonal of a rectangle is 17cm long and its perimeter is 46 cm. Find the area of the rectangle.
A. 120
B. 110
C. 130
D. 140
Q62. The percentage increase in the area of a rectangle, if each of its sides is increased by 20%
A. 55%
B. 22%
C. 33%
D. 44%
Q63. A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?
A. 2
B. 3
C. 1
D. 4
Q64. If the radius of a circle is decreased by 50%, find the percentage decrease in its area.
A. 75%
B. 85%
C. 55%
D. 65%
Q65. A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
A. 50
B. 30
C. 40
D. 60
Q66. The area of the largest circle that can be drawn inside a rectangle with sides 18cm by 14cm is
A. 49
B. 378
C. 154
D. 1078