Question
The length and breadth of a rectangle are in the ratio
2:7. If the perimeter of the rectangle is 48 cm more than the length of the rectangle, find the area of the rectangle.Solution
Let the length = 2x Let the breadth = 7x Perimeter = 2(length + breadth) = 2(2x + 7x) = 18x Given: 18x = 2x + 48 16x = 48 x = 3 So, Length = 2x = 6 cm Breadth = 7x = 21 cm Area = length × breadth = 6 × 21 = 126 cm²
The breadth ‘b’ of a room is twice its height and half of its length. Find the length of the longest diagonal of the room
If you divide a 24.6 m long wire in the ratio 12: 29, what will be the length of the longer piece?
The breadth of a rectangular hall is 8/25 of its length. If the area of the floor is 200 sq. m., then the difference between the length and breadth of t...
In a right-angled triangle, the hypotenuse is 13 cm and one of the legs is 5 cm. What is the area of the triangle?
The perimeter of a square field is 16 cm more than the perimeter of a rectangle. The length of the rectangle is 72 cm which is 300% of its width. If a s...
Find the area of a regular hexagon whose side is half of the side of a square whose perimeter is 152 cm.
If the volume of a cuboidal tank is 3240 m3 and the ratio of the length, width and height of tank is 6:5:4 respectively then find the height ...
- If the edge of the cube is increased by 5%, then find the percentage increase in the volume of the cube.
A horse is tethered to a peg with a 28 metre long repeat the corner of a 45 metre long and 25 metre wide rectangular grassfield. What area of field does...
The radii of two right circular cylinders are in the ratio 3 : 2 and the ratio of their volumes is 27:16. What is the ratio of their heights?
