Find the surface area of the cone. Use 3.14 for pi
diamter is 8
height is 7
give right asnswer and will mark as braineslt
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Answered by
37
Hi mate
Here is ur answer ⬇️⬇️⬇️
radius , r = d/2=8/2=4
height , h = 7
slant height , l = √ h^2+r^2
=√49+16 = √65 = 8.06
TSA = πr(r+l) sq units
= 3.14 × 4 ( 4+8.06)
= 12.56 ( 12.06)
= 151.4736 sq units.
I hope this will help you....
⚛️Mark as brainliest ⚛️
Here is ur answer ⬇️⬇️⬇️
radius , r = d/2=8/2=4
height , h = 7
slant height , l = √ h^2+r^2
=√49+16 = √65 = 8.06
TSA = πr(r+l) sq units
= 3.14 × 4 ( 4+8.06)
= 12.56 ( 12.06)
= 151.4736 sq units.
I hope this will help you....
⚛️Mark as brainliest ⚛️
Dhendricks56:
thxs
Answered by
0
The surface area of the cone is 151.5 in²
Given:
The diameter of the cone is 8 in
The Height of the cone is 7 in
To find:
Find the surface area of the cone. [ Use 3.14 for π ]
Solution:
Formula used:
The surface area of the cone (SA) = πr(r+L)
Where r is the radius of the cone
L is the slant height of the cone
And Slant height L = √(h²+r²)
From the data,
The diameter of the cone is 8 in
The radius of the cone (r) = 8 in/2 = 4 in
Height of the cone (h) = 7 in
Slant height L = √(7²+4²) = √65
Using the formula, SA = πr(r+L)
=> Surface area = (3.14)(4)(4 + 8.06)
= (3.14)(4)(12.06)
= 151.5
Hence,
The surface area of the cone is 151.5 in²
Learn more at
https://brainly.in/question/2715530
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