A. 154 sq metres
B. 77 sq metres
C. 308 sq metres
D. 22 sq metres
E. None of these
The angle of elevation of a ladder leaning against a wall is 600 and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is:
What is the sum of the total surface areas of all the cubes formed when a cuboid of size 5.2 m x 13 m x 39 m is cut completely into the least possible number of cubes, all of which are identical?
Three circles touch each other externally. If xy = 15,yz = 10, xz = 21 Find the radius of each circle
Five-third of the smallest side of a right angled triangle is equal to its largest side. Also the length of the second largest side of triangle is 8 cm. What is the sum of the smallest and the largest sides of that triangle together?
A closed wooden box of thickness 0.5 cm and length 21 cm, width 11 cm, and height 6 cm, is panted on the inside. The cost of painting is Rs 70. What is the rate of painting in rupees per sq. cm?
One side of a parallelogram is 18 cm and its distance from the opposite side is 8 cm. The area of the parallelogram is:
If the area of a circle decreases by 36%, then the radius of a circle decreases by
If the area of an equilateral triangle is 24√3 sq. cm, then its perimeter is
Cost of painting the 4 walls of a room 40ft.*15ft. At Rs.5 per square feet is Rs.7500. Find the height of the room?
Find the co-ordinates of the foot of the perpendicular from point (5,7) on the line whose equation is:
x + 7y - 10 = 0.