Question
A chord of the larger among two concentric circles is
of length 10 cm and it is tangent to the smaller circle. What is the area (in cmΒ²) of the annular portion between the two circles?Solution
The correct answer is B
Each side of square βAβ is 6 cm less than that of square βBβ. The perimeter of a rectangle is 4 times the difference of the perimeters of the tw...
Measure of each interior angle of a regular polygon can never be?
Area of a rectangle is equal to the total surface area of a hemisphere having volume 5488 cmΒ³ . Find the perimeter of the rectangle if its length is 12...
- If the edge of the cube is increased by 100%, then find the percentage increase in the volume of the cube.
The length and breadth of a rectangle are increased by 30% and 40% respectively. The increase in the area of the resulting rectangle will be:
- The ratio of the length to breadth of a rectangular playground is 7:5. If the cost of fencing the playground at the rate of Rs. 4 per metre is Rs. 1920, th...
Three circles of radius 6 cm are kept touching each other. The string is tightly tied around these three circles. What is the length of the string?
The two parallel sides of a trapezium are 27 cm and 13 cm respectively. If the height of the trapezium is 8 cm, then what is its area in mΒ²?
Ratio of length to width of a rectangular field is 3:5. If the perimeter of the field is 160 metres, then find the area (in m2) of the field.
The height of a triangle is equal to the perimeter of a square whose diagonal is 6√2 m and the base of the same triangle is equal to the side of a...
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