Which are not the dimensions of a right triangle?
14
A. 3 cm, 4cm, 5 cm
B. 5 cm, 12 cm, 13 cm
C. 4 cm, 8 cm, 12 cm
D. 9 cm, 12 cm, 15 cm

Anyone know? will mark brainliest if correct

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)