if seve times the curved surface area (A) of a cylinder is equal to 44 times the proudct of base radius (r) and height (h) then what si the formula with subject A?
1 Answers
Talk Doctor Online in Bissoy App
The height of a cylinder is 14cm and its curved surface area is 264cm^2. The volume of the cylinder is –
Correct answer is (D) 396 cm3
2 Answers 1 views
The area of a circle (A) varies directly as the square of its radius. The area of the circle of radius 7 cm is 154 `cm^(2)`. What is the area of the c
Correct Answer - 3850 `cm^(2)`
2 Answers 2 views
W, P, H and A are whole surface area, perimeter of base, height and area of the base of a prism respectively. The relation between W, P, H and A is __
Correct Answer - `W=P xx H +2A`
2 Answers 1 views
A and B are the volumes of a pyramid and a right prism respectively. If the pyramid and the prism have the same base area and the same height, then wh
Correct Answer - `A=(B)/(3)`
2 Answers 1 views
Find the volume, the lateral surface area and the total surface area of the cuboid whose dimensions are: (i) length = 12 cm, breadth = 8 cm and height
Correct Answer - (i) `432 cm^(3), 180 cm^(2), 372 cm^(2)` (ii) `2366 m^(3), 520m^(2), 1248 m^(2)` (iii) `45 m^(3), 21 m^(2), 201 m^(2)` (iv) `36m^(3), 291 m^(2), 303 m^(2)`
2 Answers 1 views
Curved surface area of a right circular cylinder is `4. 4" "m^2` . If the radius of the base of the cylinder is 0.7 m, find its height.
Correct Answer - (i) 1m (ii) `1.54 m^(3)`
2 Answers 1 views
The total surface area of solid cylinder is `231 cm^(2)` and its curved surface area is `(2)/(3)` of the total surface area. Find the volume of the cy
Correct Answer - `269.5 cm^(3)`
2 Answers 1 views
The ratio between the curved surface area and the total right circular cylinder is `1 : 2`. Find the volume of the cylinder if its total surface area
Correct Answer - `1078 cm^(3)`
2 Answers 1 views
The slant height and base diameter of a conical tomb are 25 m and 14 m respectively. Find the cost of whitewashing its curved surface at the rate of R
Correct Answer - Rs 6600
2 Answers 1 views
A solid cylinder and a solid cone have equal base and equal height. If the radius and the height be in the ratio of 4 : 3
Let the radius of both solids be r and their heights be h units, According to condition, \(\frac{r}{h}=\frac{4}{3}\\\therefore h=\frac{3r}{4}\) TSA of cylinder = \(2\pi r(r+h)\) TSA of cone = \(\pi r (r+l)\) On comparing the ratios, \(=\frac {2\pi r...
2 Answers 1 views