The diameter of a copper sphere is 6 cm. The sphere is meted and is drawn into a long wire of uniform circular cross - section. If the length of the wire is 36 cm, find its radius.
1 cm
1. 5 cm
2 cm
3 cm
Gradient of the straight line y = 2x + 1 is:
0
1
-1
2
Distance between the points (6,4) and (3,1) is:
4. 24 units
3. 14 units
3 units
2.5 units
Calculate the area of the following triangle.
65 cm2
70 cm2
72 cm2
79 cm2
If radius of a sphere is doubled then its volume becomes ________ times.
3
8
Solve 2x + y = 12 and 2x - y = 8.
x = 1, y = 2
x = 5, y = 1
x = 5, y = 2
x = 2, y = 5
Volume of cylinder with radius 3 cm and height 7 cm is:
51π cm3
55π cm3
63π cm3
70π cm3
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
Solve x = 6y = 0 and 3x - 3 y = 15.
x = 6, y = 1
x -1, y = 6
x = 6, y = 3
x = 3, y = 6
If tan 5θ = 1, then, θ =
8o
45o
5o
9o
