Who was the first person to find out pi (3.14)

Brittany has designed four different birdcages, each with the same volume: a square pyramid, a cylinder, a cone, and a sphere. the zoo wants to use one of brittany’s designs but plans to change the volume of the cage. find the design change that would result in the birdcage with the greatest volume. a.) increase the area of the base of the square pyramid by a factor of ten. b.) increase the height of the cylinder by a factor of ten. c.) increase the radius of the cone by a factor of ten. d.) increase the radius of a sphere by a factor of ten.

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression

She was given that ∠a ≅ ∠edf, and has already proven segment (ab) ≅ segment (de). which pair of corresponding parts and triangle congruency method would not prove δabc ≅ δdef?