Question

the lateral area of a cone is 555pi cm^2 the radius is 15 cm what is the slant height?

Answer 1

To find the Lateral Area of a cone you use...\[LA = \pi r l\]
since we know the lateral area and the radius we input these numbers into the formula....\[555picm^2=\pi 15 l\]
what do we do to find the slant height?...

Answer 2

im not sure wouldn't I multiply if that's wrong PLEASE don't laugh. I struggle so much.

Answer 3

We will first simplify 555pi and pi x 15 x l...
\[555 \times \pi = (\pi \times 15) \times l\]

Answer 4

So what is 555 times pi?

Answer 5

@minthia

Answer 6

ok I got 174470?

Answer 7

4710?

Answer 8

Not quite 555 times pi is equal to 1742.7.... We just simplified LA total, now we need to simplify pi by 15....\[1742.7 = ( 3.14 \times 15) l\]

Answer 9

47.10 do I subtract that from 1742.7

Answer 10

Thats Correct...31.4 times 15 is 47.1....you will need to divide 1742.7 by 47.1....\[1742.7 \div 47.1=\]

Answer 11

3.14*

Answer 12

37?

Answer 13

Correct! it is actually 36.98 but rounded it off and it will be 37 xD ..... Great Job! So the slant height is 37 rounded or 36.98 exact....

Answer 14

you are AMAZING things my teacher couldn't explain and you did and I understood it. thank you sooooo much

Answer 15

Np xD I am glad I was helpful ! Please press "Best Response" If I was helpful to you...

Answer 16

O you already did xD Thank You!

Answer 17

you bet