a fresh cup is in the form of a right circular one of base radius 7cm abd height 24cm .find the area of the sheet required to 10 such cats.
any one know the answer plz tell fast
the slant height is s=√527
The surface area is a=πrs
try proofreading your posts.
tell clearly i m in 9 class so tell clearly
may be answer is 22 root 527
well, I gave you the formula, so plug in your numbers.
a = π(7)(√527) ≈ 504.84 cm^2
google "cone area" and you will find lots of explanations. I'm sure your text also explains it.
22√527 will work, if you use 22/7 as the value for pi.
oh thank you vry much
thanks once again
To find the area of the sheet required for 10 such cups, we need to calculate the sum of the lateral surface area of each cup.
The lateral surface area of a right circular cone can be calculated using the formula:
Lateral Surface Area = πrℓ
where r is the base radius of the cone and ℓ is the slant height of the cone.
In this case, the base radius (r) of each cup is given as 7 cm. To find the slant height (ℓ), we can use the Pythagorean theorem:
ℓ = √(r^2 + h^2)
where h is the height of the cone.
Given that the height of each cup is 24 cm, we can calculate the slant height:
ℓ = √(7^2 + 24^2) = √(49 + 576) = √625 = 25 cm
Now, we can calculate the lateral surface area of each cup:
Lateral Surface Area = π * 7 * 25 = 175π cm^2
Since we have to find the area for 10 cups, we need to multiply the lateral surface area of one cup by 10:
Total Area = 10 * (Lateral Surface Area) = 10 * 175π = 1750π cm^2
Therefore, the area of the sheet required for 10 such cups is 1750π square centimeters.