Mathematics Mcqs — Test 39
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Question 1
The radius of a semi circle is 6.3 cm then its perimeter is?
Question 2
The perimeter of a semi circle is 144 cm then the radius is_________?
Question 3
A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?
Question 4
A paper is in a square form whose one side is 20 cm. Two semi circles are drawn on its opposites as diameters. If these semi circles are cut down what is the area of the remaining paper?
Question 5
The area of a sector of a circle of radius 5 cm formed by an arc of length 3.5 cm is__________?
Question 6
Find the cost of fencing around a circular field of diameter 28 m at the rate of Rs.1.50 a meter?
Question 7
The radius of a circular wheel is 1.75 m, how many revolutions will it make in traveling 1 km?
Question 8
If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?
Question 9
The ratio of the radius of two circles is 1: 3, and then the ratio of their areas is_________?
Question 10
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?