Find the range for the measure of the third side of a triangle given the measures of two sides. 31 cm and 39 cm

a. 321 cm <n< 38 cm
b. 9 cm <n < 69 cm
c. 31 cm <n<39 cm
d. 8 cm <n< 70 cm​

Abilliard ball is struck by a cue. it travels 1 0 0 cm 100cm before ricocheting off a rail and traveling another 1 2 0 cm 120cm into a corner pocket. the angle between the path as the ball approaches the rail and the path after it strikes the rail is 4 5 ∘ 45 ∘ . how far is the corner pocket from where the cue initially struck the ball? do not round during your calculations. round your final answer to the nearest centimeter.