The answer is A as he has all of the quarters when he spends no time in the arcade
The answer is D
If this helped a brainliest would be appreciated!
A^2 + b^2 = c^2...a and b are the legs and c is the hypotenuse
20^2 + 21^2 = c^2
400 + 441 = c^2
841 = c^2
sqrt 841 = c
29 = c <== third straw will be 29 cm