Question

The Base radius of a cone is 5cm. and its height is 12cm. Find its slant height.

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Answer 1

Question: The Base radius of a cone is 5cm. and its height is 12cm. Find its slant height.

Answer: 13 cm

Step-by-step explanation:

slant height=L ;Radius=r ; Height=h

L =$\sqrt{r^{2} +h^{2} }$

= $\sqrt{5^{2} +12^{2}$

= $\sqrt{25+144}$

= $\sqrt{169}$

= 13

Answer 2

Answer:

Given

Base radius(R) = 5cm

Height(H) = 12cm

To find

Slant height(L)

Solution

Slant height of cone = ✓Square of Base radius + Square of height

L = ✓R² + H² (it's whole root)

L = ✓5² +12²

L = ✓25+144

L = ✓169

L= 13

Therefore the slant height of the cone is 13cm

Hope it helps you.