Question

total surface area of a cone whose radius is x/4 and slant height 4y is equal today​

Answer 1

Answer:

TSA of cone =

$\pi x {}^{2} \div 16 + \pi xy$

Step-by-step explanation:

Radius = x/4

Height = 4y

now, putting these values in TSA of cone.

• TSA of cone =
• $\pi \: r {}^{2} + \pi \: r \: l \:$

= × (x/4)^2 + pi × x/4 × 4y

= pi × x^2/16 +pi xy

Answer 2

$\bold\pink{ \frac{\pi \: x}{16}(16y + x)}$

Step-by-step explanation:

Radius (r) = x/4

Slant height (l) = 4y

We know that,

TSA of cone

$\pi \: r(l + r) \\ = \pi \times \frac{x}{4} (4y + \frac{x}{4} ) \\ = \frac{\pi \: x}{4} ( \frac{16y + x}{4} ) \\ = \frac{\pi \: x}{16}(16y + x)$

I hope it helps you.

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