If the area of circle is 616 sq cm then its circumference?
A. 78 m
B. 88 m
C. 75 m
D. 70 m
Find the cost of fencing around a circular field of diameter 28 m at the rate of Rs.1.50 a meter?
A. Rs.150
B. Rs.132
C. Rs.100
D. Rs.125
The radius of a circular wheel is 1.75 m, how many revolutions will it make in traveling 1 km?
A. 1000
B. 2000
C. 3000
D. 4000
If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?
A. 15
B. 10
C. 14
D. 12
The ratio of the radius of two circles is 1: 3, and then the ratio of their areas is ______?
A. 1:3
B. 1:6
C. 1:9
D. 1:5
The radius of the two circular fields is in the ratio 3: 5 the area of the first field is what percent less than the area of the second?
A. 50%
B. 60%
C. 40%
D. 64%
A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?
A. 1120 m2
B. 1250 m2
C. 1210 m2
D. 1200 m2
What is the ratio between perimeters of two squares one having 3 times the diagonal then the other?
A. 4:8
B. 1:4
C. 6:2
D. 3:1
The radius of a semi circle is 6.3 cm then its perimeter is?
A. 35.4 cm
B. 32.4 cm
C. 32 cm
D. 30 cm
The perimeter of a semi circle is 144 cm then the radius is ____?
A. 25 cm
B. 28 cm
C. 30 cm
D. 35 cm
