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Delicious77 [7]
2 years ago
14

A cone has a circular base of radius 8m. Given that the total surface area of the cone is 350m^2, find the slant height

Mathematics
1 answer:
Gnom [1K]2 years ago
8 0
<h3>Hello There!!</h3><h3><u>Given</u></h3>

Radius of Circular Base Of Cone= 8m

Total Surface Area= 350m²

<u>Considering</u> Slant Height as l

<h2><u>Solving</u></h2>

<u>We </u><u>know</u><u>,</u>

Total Surface Area= Curved Surface Area of Cone+ Area of circular Base

i.e.,

350 { \text{m}}^{2}  = \pi \times r \times l + \pi \times  {r}^{2}

350  = \pi \times r(l \times r) \\  \\  \implies 350 = 3.142 \times 8(l + 8) \\  \\  \implies  \frac{350}{3.142 \times 8}  = l + 8 \\  \\  \implies 13.924 = l + 8 \\  \\ \implies l = 13.924 - 8 \\  \\   \therefore l = 5.924 \:  \text{cm}

So, Slant Height= 5.924 cm

<h3><u>Hope This Helps</u></h3>
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