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)
The y - intercept of the straight line y = -x is
0
1
-1
2
Volume of hollow hemispherical shell of radii R and r is equal to
2/3 π r3
4/3 π R3
2/3 π (R3 - r3)
4/3 π (R3-r3)
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.
15.3 cm
19.2 cm
20 cm
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
If radius of a sphere is doubled then its volume becomes ________ times.
3
8
Distance between the points (6,4) and (3,1) is.
4. 24 units
3. 14 units
3 units
2.5 units