mohan took 4 small spherical balls of silver of surface area 887.04 cm^2 each from a blacksmith he wanted them to be made into cylindrical coins of radius one fourth of that of the silver ball and height 4 cm find the radius of the spherical ball
Answers 2
Step-by-step explanation:
Given mohan took 4 small spherical balls of silver of surface area 887.04 cm^2 each from a blacksmith he wanted them to be made into cylindrical coins of radius one fourth of that of the silver ball and height 4 cm
Find the radius of the spherical ball. Also find the curved surface area of the coin.
- So we have spherical balls of silver of surface area 887.04 cm^2
- So Surface area of spherical ball is 4πr^2
- So 4πr^2 = 887.04
- r^2 = 887.04 / 4π
- r^2 = 887.04 / 12.56
- r^2 = 70.624
- Or r = 8.403
- According to the question,
- Radius of a cylinder coin = ¼ x 8.403
- = 2.1 cm
- Given height of the cylindrical coin is 4 cm
- Therefore curved surface area of the coin is 2πrh
- = 2 x 22/7 x 2.1 x 4
- = 52.8 sq cm
Reference link will be
https://brainly.in/question/79412
-
Author:
luckyjrh7
-
Rate an answer:
3
Answer:
Radius of the Spherical ball = 8.4 cm
Radius of cylindrical coin = 2.1 cm
Explanation -
Given, 4 spherical balls of SA 887.04 Each
SA of Spherical ball = 887.04
4πr²=887.04
4×22/7×r² = 887.04 (Taking π as 22/7)
r² = ( 887.04×7) / (22×4)
r² = 70.56
r = √70.56 = 8.4
Therefore , radius of each spherical ball is 8.4cm.
-
Author:
giannauvua
-
Rate an answer:
10
If you know the answer add it here!
Other related questions that may help you
-
Author:
bernarda
-
Author:
maximo593t
-
Rate an answer:
7
-
Author:
dixiequrx
-
Rate an answer:
0
-
Author:
francoblackburn
Answer:
I THINK IT'S HELPFULLY FOR YOU MARK AS BRILLIANTGIVE ME FIVE STAR RATING⭐⭐⭐⭐⭐
-
Author:
boscocastillo
-
Rate an answer:
8
-
Author:
sylviabass
-
Author:
milagroscohen
-
Rate an answer:
5
-
Author:
dji5tr
-
Rate an answer:
2