The hypotenuse of a 30°-60°-90° triangle has a length of 20 cm. Which could be the length of a leg of the triangle? Select all that apply

The base of the rectangle pyramid is 13 inches long and 12 inches wide the height of the pyramid is 18 inches . what is the volume of the pyramid ?

Two men, 400 feet apart, observe a balloon between them; it is in the same vertical plane as they are. the respective angles of elevation of the balloon are observed by the men to be 75°20' and 49°30'. find x rounded to the nearest whole number. 318 ft 339 ft 471 ft 504 ft

Savannah is 24 years older than ryan, while sebastian is 5 times as old as ryan. if savannah and sebastian are twins, which equation may be used to determine the age of all three people? a) 8x = 24 b) 24 + 2x = 5x c) 24 + 5x = x d) 24 + x = 5x