A regular triangular pyramid has slant height 6 cm and base edges of length 15 cm. Find:
Volume of the pyramid?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

What is the relationship between all triangles that can be drawn given the same three angles

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?