Step-by-step explanation:
1/3(6+3)
= 1/3(9)
= 3
......
the answer is 153.86 ft squared
= the formula for the area of a circle is A=πr2
= area = pi x radius squared
= the radius is 7 feet, square that to get 49
= multiply 49 by pi to get the area: 153.86 square feet
153.86 ft squared
Subtract 89 from -42. k=-131
Parameterize the part of the sphere by

with

and

. Then

So the area of

(the part of the sphere above the cone) is given by
Answer:
QM = 21
Step-by-step explanation:
The diagonals of a parallelogram bisect each other, then
QM = PQ = 21