Question
Find the minimum length of a rubber band which can tie three circular pipe of radius 21 cm?
length of arc. = θ/180 × π × r = 120/180 × 22/7 × 21 × 3 = 132 cm (take approximate value) Minimum length of rubber band = (42 + 42 + 42) + 132 = 258 cmMore Mensuration Questions
- A rectangular park is 60 m long and 40 m wide. A path of uniform width 2 m is constructed inside the park along all four sides. Find the area of the path.
- The cost of painting the walls of a room 8 meter long and 10 meter wide at Rs 22.5 square per meter is 7290. What is the height of the room?
- Find the cost of building a fence around a square field with area 529m2 at the rate of Rs.40 per meter ?
- A rectangular room measures 25 metres in length and has a perimeter of 78 metres. Calculate the total cost to carpet this room at a rate of Rs. 8 per squar...
- The volume of a solid cube is 1000 m3. If whole cube is to be painted at a rate of Rs. 6 per m2, then what will be the cost of painting the cube?
- O is the Centre of the circle passing through the points A, B and C such that ∠BAO=30 ° , ∠BCO=40 ° and ∠AOC=x ° , what is the value of x?
- The cost of fencing a rectangular field at the rate of Rs. 3/metre is Rs. 270. If the length of the field is 11 metres more than its breadth, then find the...
- If the curved surface area and the radius of a cylinder are 550 cm2 and 7 cm, respectively, then find the volume (in cm3) of the cylinder.
- A room 20 m long, 16 m broad and 8m high has 2 windows of 1 m and `1(1)/(2)` m and a door of 2m `xx` `1(1)/(2)` m. Find the cost of papering th...
- A village having a population of 8000 requires 200 litres of water per head per day. It has a tank measuring 40 m `xx` 30 m `xx` 12 m. The water of this ta...
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
