SOLUTION: A right-angled triangle has an area of 28cm2. The width of the triangle is n+4cm. The height is 10cm less than the width. What is the value of n.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A right-angled triangle has an area of 28cm2. The width of the triangle is n+4cm. The height is 10cm less than the width. What is the value of n.      Log On


   

Question 1059881: A right-angled triangle has an area of 28cm2. The width of the triangle is n+4cm. The height is 10cm less than the width. What is the value of n.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
%281%2F2%29%28n%2B4%29%28%28n%2B4%29-10%29=28, which uses half of base times height formula for triangle area.