A 5 m wide cloth is used to make
Asked by admin @ in Math viewed by 340 People
A 5m wide cloth is used to make a conical tent of base diameter 14m and height 24m. Find the cost of cloth used at the rate of Rs 25 per metre. [use pie=22/7]
Answered by admin @
Solution:-
Let the slant height of the cone be 'l' meters.
height = 24 m and diameter = 14 m or radius = 7 m.
Then according to the question.
l² = h² + r²
l² = 24² + 7²
l² = 576 + 49
l² = 625
l = √625
l = 25 m
So, the slant height of the cone is 25 m.
Now,
Curved Surface Area of the cone = πrl
= 22/7*7*25
CSA = 550 sq m
Now, length of the cloth used = Area/ width of the cloth
= 550/5
Length of the cloth used = 110 m
Cost of cloth = Rs. 25 per meter
Total cost of clothe used = 110*25
= Rs. 2750
Answer.
Similar Questions
Graphite is used for making electrode in a cell
Asked by admin @ in Science viewed by 421 persons
Graphite is used for making electrodes in electric cells.give reasons.
Which is the widely used word processing software in computers
Asked by admin @ in Computer Science viewed by 314 persons
Which is widely used word processing software in computer?
A) Ms wordB) Ms PowerPoint C) Ms excel D) Ms access
How is gel electrophoresis used to make a dna fingerprint
Asked by admin @ in Biology viewed by 321 persons
How does the process of gel electrophoresis produce DNA fingerprints? An electric current sorts DNA nucleotides according to their bases. O An electric current cuts a DNA strand into segments …
Why zinc cannot be used to make electrical wires
Asked by admin @ in Chemistry viewed by 372 persons
Why zinc can not be used to make ekectrical wires ?
Guys answer me fastly You can write it by not more than 4 lines please answer it fastly!!!!!!
Why can we not use wood to make utensils
Asked by admin @ in Environmental Sciences viewed by 349 persons
Why do we not cook our food in the utensil made of wood ?
What is the most widely used secondary storage medium
Asked by admin @ in Computer Science viewed by 289 persons
List and describe the most commonly used secondary storage media
Make the given amount using different combination of coins
Asked by admin @ in Math viewed by 394 persons
make the given amount using different possible combination of coins. 1) 6 rupee
A cloth having an area of 165 m square
Asked by admin @ in Math viewed by 274 persons
A cloth having an area of 165 meter sq is shaped into the form of a conical tent of radius 5 m. How many students can sit in the tent …
The most widely used semiconductor material in electronic devices is
Asked by admin @ in Political Science viewed by 309 persons
The most widely used semiconductor material in electronic devices is
Which example most clearly uses ethos to make an appeal
Asked by maham237 @ in English viewed by 345 persons
Which example most clearly uses logos to make an appeal
Asked by maham237 @ in English viewed by 286 persons
A ) a man's vivid description of his year traveling solo around the world
B ) A survey that shoes 78 percent of parents want longer school days
C ) …
What is the most widely used form of mass media
Asked by maham237 @ in Geography viewed by 300 persons
Which of these are forms of mass media?
Which food item is used to make dynamite
Asked by maham237 @ in Physics viewed by 345 persons
Which food item is used in the production of dynamite?
Nichrome is used to make the electric heater why
Asked by admin @ in Science viewed by 314 persons
Nichrome is used to make the element of electric heater.why?
Do screws used in making furniture experience earth magnetic field
Asked by admin @ in Science viewed by 448 persons
Do screws used in making furniture experience Earth's magnetic field?
Most viewed questions in Math
Prachi excellence in mathematics class 7 solutions pdf free download
Asked by admin @ in Math viewed by 12018 persons
Oxford new enjoying mathematics class 7 solutions chapter 1
Asked by admin @ in Math viewed by 11512 persons
Survey of various types of bank accounts icse project
Asked by admin @ in Math viewed by 11501 persons
Rahul went to his mother's mother in law
Asked by admin @ in Math viewed by 4173 persons