Mathematics
The circumference of a circle is equal to the sum of the circumferences of two circles with radii 10 cm and 12 cm. The radius of the circle formed is :
2 cm
44 cm
22 cm
244 cm
Related Questions
The circumference of a circle is numerically same as its area; then its radius is :
4 unit
2 unit
1 unit
none of these
The perimeter of a square of side 11 cm is equal to circumference of a circle; then the diameter of the circle is :
7 cm
7.5 cm
14 cm
3.5 cm
The diameter of a circular wheel is 56 cm. The distance moved by it in 100 rounds is :
176 cm
17600 cm
1760 cm
352 cm
A circular wheel of radius 3.5 cm makes 600 rounds in 48 seconds, its speed is :
275 cm/s
27.5 m/s
550 cm/s
55 cm/s