Use the formula for the surface area of a right cone:

Where 'r' is the radius and 's' is the slant height, plug in what we know(use 3.14 to approximate for pi):

Multiply and simplify exponent:

Multiply:

Add, round to the nearest whole number:
Answer: May you show the angle we are supposed to solve? its a bit unclear. or can you explain the angle to us?
Step-by-step explanation:
Jony is 2 now and is 2x older than Chika. So Chika is 1 year old. This means Chika is 1 year younger than Jony. When Jony is 30, Chika is 29
Answer:
a i the answer
Step-by-step explanation:
l ≤ 12
2l + 2w < 30
Answer:
55
Step-by-step explanation:
75+50=125
180-125=55