PreCalc
posted by Kali on .
Tee Ball is similar to baseball, but the field is a diamond 40 ft square. The pitchers mound is positioned 25 ft from homeplate. Determine the distance from the pitchers mound to 3rd base.

Triangle sides 40 and 25 and included angle = 45 degrees. We want the side opposite the 45 degree angle
c^2 = a^2+b^2  2ab cos 45
c^2 = 40^2 + 25^2  2*40*25 (sqrt 2/2)
c^2 = 1600+6251414 =810
c=28.5