Questions
Find the area of a right angled triangle, in which the base is 4 metres and the hypotenuse is 5 metres.
- 6 sq. metres
- 20 sq. metres
- 10 sq. metres
- 12 sq. metres
One side of a rectangular field is 4 metres and its diagonal is 5 metres. The area of the field is
- 12 sq. metres
- 24 sq. metres
- 9 sq. metres
- 20 sq. metres
The diagonal of a square is 1.6 metres. Its area is
- 1.20 sq. metres
- 2.56 sq. metres
- 2.48 sq. metres
- 1.28 sq. metres
The sides of a rectangular park are in the ratio 3 : 2 and its area is 3750 sq. metres. The cost of fencing is 10 paise per metre. The cost of fencing is
- Rs. 62.50
- Rs. 75
- Rs. 37.50
- Rs. 25
A park is 11 metres long and 7 metres broad. What is the length of the longest pole that can be placed in the park?
- 11 metres
- 7 metres
- 13.03 metres
- 12.8 metres
The altitude of an equilateral triangle of side 2 cm is
- 2 cm
- 0.5 cm
- 1 cm
- 1.732 cm
A circular road runs round a circular ground. If the difference between the circumferences of the outer circle and the inner circle is 132 metres, the width of the road is
- 21 metres
- 10.5 metres
- 5.25 metres
- 7 metres
The diameter of a wheel is 126 cm. The distance travelled by the wheel on taking 100 revolutions is
- 99 metres
- 198 metres
- 63 metres
- 396 metres
A circular disc of area 0.49 pi sq. metres rolls down a length of 2.2 km. The number of revolutions it makes is
- 300
- 400
- 600
- 500
The radius of a wheel of a vehicle is 2.52 cm. The wheel makes 20 revolutions in 10 seconds. The speed of the vehicle is
- 15.84 cm/sc
- 31.68 cm/s
- 39.92 cm/s
- 32.72 cm/s