Posted by Danielle on .
A baseball diamond is a square with sides 22.4m. The pitcher's mound is 16.8m from home plate on the line joining home plate and second base. How far is the pitcher's mound from first base
?

Math 
Charrice,
c^2 = a^2 + b^2
22.1^2= 16.8^2 + b^2
solve for 'b' using pythag. theorem 
Math 
Danielle,
Thank you Charrice

Math 
Steve,
I think there's a slight error here. The solution given works only if the angle at the pitcher's mound is 90 degrees. However, the center of the square is 22.4/√2 = 15.8m from home plate.
If you make the firstbase line the xaxis, with home plate at (0,0), then the pitcher's mound is at (16.8/√2,16.8/√2) = (11.88,11.88)
The distance from, (11.88,11.88) to (22.4,0) is
√(22.411.88)^2 + 11.88^2 = 15.87m
The solution above gives 14.36m