Question

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 1

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 = 62.8 inches² (Ans.)

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Answer 2

Answer:

saging ni marites

Step-by-step explanation:

umiyak ka nalang ganun din ginawa ko