mrs.hernandez made a cylindrical pencil holder it has a height of 5 inches and a diameter of 4 inches .how much material does she need to make her pencil holder ?use n=3.14
Given:–mrs.hernandez made a cylindrical pencil holder it has a height of 5 inches and a diameter of 4 inches .how much material does she need to make her pencil holder ?use n=3.14
Answer:–
we know that,
CSA of cylinder = 2πrh .
Radius = diameter/2 .
so,
→ Material used = CSA of cylindrical holder .
→ Material used = 2πrh
→ Material used = 2 * 3.14 * (4/2) * 5
→ Material used = 2 * 3.14 * 2 * 5
→ Material used = 6.28 * 10
→ Material used = 62.8inches²(Ans.)
Learn more :-
from a solid cylinder whose height is 3.6 cm and diameter 2.1 CM a conical cavity of the same height and the same diamet…
Answer:
saging ni marites
Step-by-step explanation:
umiyak ka nalang ganun din ginawa ko
Given :– mrs.hernandez made a cylindrical pencil holder it has a height of 5 inches and a diameter of 4 inches .how much material does she need to make her pencil holder ?use n=3.14
Answer :–
we know that,
so,
→ Material used = CSA of cylindrical holder .
→ Material used = 2πrh
→ Material used = 2 * 3.14 * (4/2) * 5
→ Material used = 2 * 3.14 * 2 * 5
→ Material used = 6.28 * 10
→ Material used = 62.8 inches² (Ans.)
Learn more :-
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