<em><u>Planning is the process of thinking about the activities required to achieve a desired goal.</u></em>
A. first the find the are of the top side. to get the area of a circle you do radius squared times pi. The radius is half the diameter so 5 squared times ok equals 78.5
Then times that by the length, 21 times 78.5 equals 1648.5
b. first square the radius to get 400, then times that by 4 to get 1600. after that multiply that by ok to get 5026.5
The area of a square is:
A=s^2, solve this for s
s=√A
The "diagonal" is the hypotenuse of a right triangle with legs of length s.
By the Pythagorean Theorem:
d=√(s^2+s^2)
d=√(2s^2), and since we found that s=√A earlier:
d=√(2A), and since we are told that A=128m^2
d=√256
d=16m
Answer: John is 6. Claire is 12.
Step-by-step explanation: 12 * 5 = 60. 6 * 2 = 12. 60 + 12 = 72.