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3 years ago

Find the lateral area of the cone in terms of pi. Radius 3cm, height 4

Mathematics

1 answer:

Alona [7]3 years ago

6 0

Lateral area of the cone = 15 π sq. cm

<u>Step-by-step explanation:</u>

Lateral area of the cone A = πr √(h²+ r²)

Here h = 4 cm and r = 3 cm

Plugin the values we will get the lateral area as,

A = π × 3 ×√(4² +3²)

= π × 3 ×√(16 +9)

= π × 3 ×√(25)

= π × 3 × 5

= 15 π sq. cm

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The ribbon was 3 1/4 inches wide and had an area of 19 1/2 square inches. What is the length of the ribbon? Please Help Will Giv

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The formula for finding area is l × w

If the area is 19 ½ inches and it was 3 ¼ inches wide, then the length will be 19 ½ ÷ 3 ¼ (Area ÷ Width)

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3 years ago

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3 years ago

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jasenka [17]

Divide into shapes that you can find the area of.....

you also have to cross out the 5 and the 4s because you will not need them

2×2= 4 sq. cm
2×2= 4 sq. cm
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18 + 4 + 4 = 26 sq. cm

so the area is 26 sq. cm

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3 years ago