How many triangles exist with the given side lengths? 3 cm, 5 cm, 9 cm

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170