If x – y = 1 and x2 + y2 = 41 where x, y ≥ 0, then the value of x + y will be:
(x - y)² = x² - 2xy + y² x - y = 1 and x2 + y2 = 41 (x - y)² = x² - 2xy + y² 1 = 41 - 2xy xy = 20 now - (x + y)² = x² + 2xy + y² =41+2×20 (x + y)²=81 x+y =9.
The perimeter of an equilateral triangle is 36√3 cm. Find its height.
Find the time taken by a pipe, which releases 94.5 m3 of water in a minute to fill an empty cylindrical tank of radius 12 m and height 14 m. ...
What will be the total surface area of a triangular pyramid whose sides are all 1 cm long?
Two circles, each of radius 7 cm, intersect each other. The distance between their centers is 7√2 cm. Find the area common to both circles.
Water flows at the rate of 10 meter per minute from a cylindrical pipe 5mm in diameter. How long it takes to fill up a conical vessel whose diameter at ...
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 diameter of the base of a cylindrical drum is 14 cm and its height is 12 cm. The drum is full of water and the water from the drum is transferred to...
When the ratio of the length and breadth of the rectangle is given as 3:2. If the perimeter of the rectangle is equal to the perimeter of the square, wh...
The height of a right circular cone is 35 cm and the area of its curved surface is four times the area of its base. What is the volume of the cone (in ...
The external dimensions of an open rectangular wooden box are 88 cm by 74cm by 67cm. If the wood is 2cm thick all around, find the amount of volume of w...
