Which are the possible side lengths of a triangle?

a 3 cm, 5 cm, 9 cm
b 4 cm, 8 cm, 10 cm
c 6 cm, 9 cm, 17 cm
d 8 cm, 10 cm, 18 cm

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w