Question

Question 83 true or false and why ? plz ryt answer thanks

Answer 1

The answer is false.

The formula for the SA of a cone is $\pi r^{2}+\pi rl$ where r is the radius of the base and l is the slant height.
Since we have both the slant's height and the radius of the base we can answer this just by plugging numbers in;
$SA=\pi r^{2}+\pi rl\\ SA=\pi (2^{2})+\pi (2)(6)\\ SA=4\pi+12\pi\\ SA=16\pi$
$16\pi$≈50.2654...

So your answer is false.