Question
A square whose diagonal is 12√ 2cm is made base of the pyramid. if height of the pyramid is 15cm, then what is the total surface area of the pyramid.(cm 2)
now total surface area of pyramid =Area of base +1/2 ×perimeter of base ×slant height = (12)2+(4×12)/2 x3√29 =144+72√29 =72(2+√29) cm2More Mensuration Questions
- Perimeter of a square shaped plot is 80 metres and the area of a rectangular plot is 38% more than that of the square shaped plot. Find the area (in m2) of...
- Quantity I: The total area of a Square and rectangle is 546 Sq cm. The side of the square is 14 cm. What is the sum of the perimeter of square and rectang...
- The volume and height of a cylinder are 7436 cm3 and 14 cm. Find the radius of the cylinder.
- 1.5 cm of rain has fallen on a square km of length 80% of the water was stored in a tank of dimensions 160 m × 15m. Find the increase in the water level in...
- Perimeter of a rectangle is 40% more than that of a square of side 25 cm. If the difference between the length and breadth of the rectangle is 12 cm, respe...
- A rectangular hall is 12 m long and 9 m wide. A carpet is laid leaving a uniform border of 1 m all around the inside. Find the area of the border.
- If the radius of a cylinder is 10 cm and its curved surface area is 550 cm2 then find the height of the cylinder?
- The perimeter of a square is 112 cm. Calculate the area of that square.
- Each side of square ‘A’ is 4 cm less than that of square ‘B’. The perimeter of a rectangle is 3 times the difference of the perimeters of the two square. I...
- What is the difference between (in m2) the area of a circular field of radius 14 metres and area of a rectangular piece of land having its dimensions as 15...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
