Question

Question 1: Find the total surface area of a cone, if its slant height is 21 m and diameter of its base is 24 m. *
1 point
1234.57 sq. m
1244.57 sq. m
1243.00 sq. m
1254.57 sq. m
Question 2: What length of tarpaulin 3 m wide will be required to make conical tent of height 8 m and base radius 6 m? Assume that the extra length of material that will be required for stitching margins and wastage in cutting is approximately 20 cm. [Use π = 3.14] *
2 points
66 m
67 m
74 m
63 m


Question 3: A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard. Each cone has a base diameter of 40 cm and height 1 m. If the outer side of each of the cones is to be painted and the cost of painting is Rs 12 per m2, what will be the cost of painting all these cones? (Use π = 3.14 and take= 1.02). *
3 points
Rs.384.34
Rs.398.00
Rs. 370.34
Rs. 304.00


Question 4: Find the total surface area of a hemisphere of radius 10 cm. [Use π = 3.14] *
1 point
946 sq. cm.
942 sq. cm.
842 sq. cm.
952 sq. cm.


Question 5.: The diameter of the moon is approximately one-fourth of the diameter of the earth. Find the ratio of their surface area. *
2 points
1:20
1:16
1:06
1:26



Question 6: A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5 cm. Find the outer curved surface area of the bowl. *
1 point
173.25 sq. cm
73.25 sq. cm.
183.25 sq. cm
163.25 sq. cm

Answer 1

Answer:

that are the answers of your mcqs