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
You have to add 10 last.
divide 75÷8 and then add 10
Answer:
-4and1/8
Step-by-step explanation:math