justinfitzsimmons05 justinfitzsimmons05

15-06-2021
Mathematics

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A right cone has a surface area of 440 square inches and a radius of 7 inches. Find its slant height.

Respuesta :

ChristinaRed ChristinaRed

15-06-2021

Answer:

13 inches

Step-by-step explanation:

Surface area of a right cone = pi*r(r+L)

i,e, 440 = 22/7*7(7+L)

440 = 22(7+L)

440 = 154 + 22L

440 - 154 = 22L

286 = 22L

286/22 = L

13 = L

Therefore the slant height is 13inches

Hope u understand

Thank You

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