Answer:
total surface area of cone is πr (r+l)
22/7 x 3 (3+4)
22/7*3 (7)
22 x 3 ( as 7 that was divided by 22 was cut out with 7 in the bracket)
hence,
TSA of cone = 66pi
I'm sorry, I don't see the question. Could you please retake the photo in better quality so I could answer it? Thanks!
If we take 1200 as the 100%, how much percentage is 700 of it?
well

so, (175/3)% or roughly 58.3%
now, how much is (175/3)% of 15000 ?
well, if we take 15000 as the 100%
then
If you're looking for the angle it is a 30, 60, 90, but if you're looking for the length of the hypotenuse it's 5