Question
The base of a pyramid is an equilateral triangle whose
each side is 10 cm. Its slant edge is 30 cm. What is the total surface area (in cmΒ²) of the pyramid?Solution

If x = (√5-√3) / (√5+√3) and y is reciprocal of x. then what is the value of √(x3 + y3)?
The volume of a cube is given as 8Γ(x+3)3 m3. The length of a rectangle is twice the side length of the cu...
In measuring the sides of a rectangle, there is an excess of 15% on one side and 10% deficit on the other. Then the error percent in the area is
Four cubes, each having a side of 6 cm, are placed next to each other in a straight line. What will be the total surface area of the resulting cuboid?
The volume and height of a cylinder are 4224 cm3 and 21 cm. Find the radius of the cylinder.
A solid cube of side 8 cm is dropped into a rectangular container of length 16 cm, breadth 8 cm and height 15 cm which is partly filled with water. If t...
A square field has side 28 m. A circular lawn of radius 14 m is made inside the field. Find the area of the remaining part of the field. (Use Ο = 22/7)
A rectangular field has a perimeter of 82 meters, and the length of its diagonal measures 29 meters. Determine the area of the field.
A trapezium has parallel sides of lengths 10 cm and 20 cm, and its height is 8 cm. Find the length of the diagonal if the diagonals are equal.
The total area of a circle and a square is 5450 cm2; the diameter of the circle is 70 cm, what is the difference between the circumference of...