Area of the canvas cloth needed to erect a right conical tent of height 12 ft and circular base having circumference `10pi\ ft` is (a) 60 sq ft (b) 65 sq ft (c) `65pi\ s q\ ft` (d) `120pi\ s q\ ft`

The curved surface of a right circular cone of height 15cm and base diameter 16cm is 60 pi backslash cm^(2)(b)68 pi backslash cm^(2) (c) 120 pi backslash cm^(2) (d) 136 pi backslash cm^(2)

The area of a circle whose radius is the diagonal of a square whose area is 4 sq. units is 16pi s qdotu n i t s (b) 4pi s qdotu n i t s (c) 6pi s qdotu n i t s (d) 8pi s qdotu n i t s

A carpenter is designing a table. The table will be in the form of a rectangle whose length is 4 feet more than its width. How long should the table be if the carpenter wants the area of the table to be 45 sq ft? (a) 6 ft (b) 9 ft (c) 11 ft (d) 13 ft

A solid metallic right circular cylinder of base diameter 16 cm and height 2 cm is melted and recast into a right circular cone of height three times that of the cylinder. Find the curved surface area of the cone. [U s e pi=3. 14] (a) 196.8 cm2 (b) 228.4 cm2 (c) 251.2 cm2 (d) None of these

A circular swimming pool is surrounded by a concrete wall 4 ft.wide.If the area of the concrete wall surrounding the pool is (11)/(25) that of the pool,then the radius of the pool is (a) 8 ft (b) 16 ft (c)20 ft (d)30 ft

A man ordered a length of rope by telephone from his nearest hardware shop. But when a worker in the shop brought the rope, he found that the man on the telephone had miswritten the order by in-terchanging feet and inches. As a result of this, the length of rope received was only 30% of the length he had ordered. The length of the rope which the man ordered was between 6 ft a n d 7 1/2ft b. 7 1/2ft a n d 9 ft c. 9 ft a b n d 10 1/2ft d. 10 1/2ft a n d 12 ft

The slant height of a right circular cone is 10m and its height is 8m. Find the area of its curved surface.30 pi backslash m^(2)(b)40 pi backslash m^(2)(c)60 pi backslash m^(2)(d)80 pi backslash m^(2)

Uttar Bantra Sarbojanin Durgotsav Committee had started planning for their Durga puja a year in advance with a mega budget in mind. Bholeram Tents is given a contract by the municipal corporation of Budaun (Uttar Pradesh), India to setup a mega function pandal (tent). The architect has designed a tent of height 7.7 m in the form of a right circular cylinder of diameter 36 m and height 4.4 m surmounted by a right circular cone. This tent is setup in a rectangular park of dimensions 70 m xx 60 m as shown below. The tent is made of canvas. (Take pi=3.14 ) The cost of canvas at ₹ 4.50, sq m is:

A conical cavity is drilled in a circular cylinder of 15 cm height and 16 cm base diameter. The height and base diameter of the cone are the same as those of the cylinder. Determine the total surface area of the remaining solid. 215 pi c m^2 (b) 376 pi c m^2 (c) 440 pi c m^2 (d) 542 pi c m^2

If A(3/sqrt(2), sqrt(2)), B(-3/sqrt(2), sqrt(2)), C(-3/sqrt(2), -sqrt(2)) and D(3 cos theta , 2 sin theta) are four points . If the area of the quadrilateral ABCD is maximum where theta in (3 pi/2, 2 pi) then (a) maximum area is 10 sq units (b) theta = 7 pi/4 (c) theta = 2 pi- sin^(-1) 3/ sqrt(85) (d) maximum area is 12 sq units