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3 years ago

Please answer this correctly

Mathematics

1 answer:

Eva8 [605]3 years ago

5 0

Answer:

Surface Area is 56π cm²

Step-by-step explanation:

The area for a cylinder's surface area is

a=2πrh+2πr²

The cylinder base's radius is 4 cm

The cylinder's height is 3 cm

Putting into the equation:

a=2×π×4×3+2×π×4²

a=2π×4×3+2×π×4²

a=8π×3+2×π×4²

a=24π+2×π×4²

a=24π+2×π×16

a=24π+2π×16

a=24π+32π

a=56π

The surface area of the cylinder is 56π cm².

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2 years ago

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2 years ago

2. What does y equal? * y+3/4 = 6

kakasveta [241]

Answer:

3rd option

Step-by-step explanation:

Given

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2 years ago

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Alona [7]

Answer:

Step-by-step explanation:

here's your solution

=> Both the traingle are similar hence ,

=> it's corresponding sides are in equal ratio

=> so,8/20 = 6/y

=> 8y = 20*6

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 hope it helps

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