Question

What is the lateral area of a cone with radius 19 cm and slant height 11 cm?
19 pie cm2
30 pie cm2
200 pie cm2
209 pie cm2

Answer 1

@RoseDryer

Answer 2

Well
For pyramid or cone,

LA = 1/2 (perimeter of base)(slant height)

Answer 3

pie is what you have for dessert

pi is the number 3.14159.....

Answer 4

ok sorry

Answer 5

@RoseDryer cone

Answer 6

So what it the "perimeter" of the cone. P=circumference.
So find the Circumference

Answer 7

Tell me what you get.

Answer 8

I am working on it now

Answer 9

38 pi

Answer 10

Correct.

Answer 11

I did it differently though I did the 38 times pi and got 119.3805 then multiplied it by 11
To get 1313.1855
Then divided by 2=
656.59275
And divided by pi
208.9999
Then round up.

Answer 12

209

Answer 13

So it would be 209 pi cm^2
Because you would have to say that you multiply that answer by pi to get the real LA of the cone.

Answer 14

thanks

Answer 15

np