A rectangle becomes a square when its length is reduced by 10 units and its breadth is increased by 5 units. but by this process the area of the rectangle is reduced by 210 sq.units. The area of the rectangle (A) in square units is :
The ratio of the areas of a square of side 6 cm and an equilateral triangle of side 6 cm is :
The area of a right-angled triangle is 20 sq.cm and one of the sides containing the right angle is 4 cm. The altitude on the hypotenuse is :
If every side of a triangle is doubled, the area of the new triangle is K times the area of the old one. K is equal to :
ABCD is a square. E is the mid-point of BC and F is the mid-point of CD. The ratio of the area of triangle AEF to the area of the square ABCD is :
A rectangular plank $$\sqrt 2 $$ metre wide is placed symmetrically on the diagonal of a square of side 8 metres as shown in the figure. The area of the plank is :
Area mcq question image
If the height of a triangle is decreased by 40% and its base is increased by 40%, what will be the effect on its area ?
The diameter of a circle is 3.5 cm. What is the circumference of the circle ?
If the perimeter of a square is equal to the radius of a circle whose area is 39424 sq. m. What is the area of the square ?
A small ring of negligible thickness and radius 2 cm moves on a bigger rung of radius 10 cm. How many rotations will the small ring take on the bigger ring to make a complete round ?
What will be the area of a semi-circle whose perimeter is 36 cm ?
The area of the largest circle, that can be drawn inside a rectangle with side 18 cm by 14 cm, is :
A farmer wishes to start a 100 sq.m rectangular vegetable garden. Since he has only 30 m barbed wire, he fences three sides of the garden letting his house compound wall act as the fourth side fencing. The dimension of the garden is :
Two sides of a rectangle were measured. One of the sides (length) was measured 10% more than its actual length and the other side (width) was measured 5% less than its actual length. The percentage error in measure obtained for the area of the rectangle is :
The area of a square is three-fifths the area of a rectangle. The length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square ?
The area of a square with perimeter 48 cm, is :
The area of a rectangle is thrice that of a square. If the length of the rectangle is 40 cm and its breadth is $$\frac{3}{2}$$ times that of the side pf the square, then the side if the square is :
If the length of a certain rectangle is decreased by 4 cm and the width is increased by 3 cm, a square with the same area as the original rectangle would result. The perimeter of the original rectangle (in cm) is :
The area of a triangle is p sq.cm and its base is x cm. What is the height of the triangle (in cm) ?
Perimeter of a rectangular field is 160 metres and the difference between its two adjacent sides is 48 metres. The side of a square field, having the same area as that of the rectangle, is :
A triangle of area 9y cm2 has been drawn such that its area is equal to the area of an equilateral triangle of side 6 cm. The value of y would be :
Three circle of radius 3.5 cm are placed in such a way that each circle touches the other two. The area of the portion enclosed by the circles is :
The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by :
The length, breadth and height of the room are in the ratio 3 : 2 : 1. The breadth and height of the room are halved and length of the room is doubled. The area of the four walls of the room will :
The total surface area of a right circular cylinder with radius of the base 7 cm and height 20 cm, is :
The ratio of bases of two triangles is x : y and that of their areas is a : b. Then the ratio of their corresponding altitudes will be :
A vertical rod of height 33 metres is bent to form a semi-circular shape so that the top touches the ground. The distance between the top head and the base on the ground is :
The area of a rectangle field is 52000 m2 . This rectangular area has been drawn on a map to the scale 1 cm to 100 m. The length is shown as 3.25 cm on the map. The breadth of the rectangular field is :
If the length of a rectangle is increased by 10% and its breadth is decreased by 10%, the change in its area will be :
The sides of a rectangle are 8 cm and 6 cm. The corners of the rectangle lie on a circle. Find the are a of the circle without the rectangle :
0 h : 0 m : 1 s