Spherical ball of diameter 21 cm is melted and recasted into cubes, each of side 1 cm. Find the number of cubes thus formed.
4800
5800
4851
5851
Calculate the area of the following triangle.
65 cm2
70 cm2
72 cm2
79 cm2
If tan 5θ = 1, then, θ =
8o
45o
5o
9o
Sin230o + cos260o =
1
1/2
1/3
√3/2
Coordinate of the midpoint of the line segment joining the points (5,6) and (1,2) is:
(1,2)
(2,4)
(3,4)
(4,5)
Volume of cylinder with radius 3 cm and height 7 cm is:
51π cm3
55π cm3
63π cm3
70π cm3
Solve 2x + y = 12 and 2x - y = 8.
x = 1, y = 2
x = 5, y = 1
x = 5, y = 2
x = 2, y = 5
Three sphere of radii 3 cm, 4cm and 5 cm are melted to form a new sphere. Then, the radius of the new sphere is:
6 cm
7.5 cm
10 cm
12 cm
Calculate x from the following figure. tan 58° = 1.6
15.3 cm
19.2 cm
20 cm
If radius of a sphere is doubled then its volume becomes ________ times.
2
3
8