Question

plz answer the question ​

Answer 1

7 is the answer

Step-by-step explanation:

2×l+b so 2 ×24 +16 =30 so 30 ÷210

Answer 2

Answer:

253 338.03

Step-by-step explanation:

Surface area of a cone equation = $\pi r^{2} +\pi rl$  (where $l$ is the slanted height).

NB: You have been given the DIAMETER of the base as 24 m, so the radius is 12 m (half the diameter).

You can calculate the slanted height by using Pythagoras' theorem $a^{2}+b^{2}=c^{2}$ (where $a$ = height, $b$ = base and $l=c=$ hypotenuse)

⇒ $16^{2}+12^{2}=c^{2}$

⇒ $c=20$

⇒ $l=20$

So surface area:

$=\pi r^{2} +\pi rl$

$=\pi (12)^{2}+\pi (12)(20)$

$=384\pi \ m^{2}$

If the cost of the canvas is 210 per metre squared (sorry, I can't see the currency as your upload is very blurry), then you simply need to multiply the surface area by the cost of the canvas.

$384\pi \times 210=253,338.03$