Quadratic Equations Aplications

Algebra
Tutor: None Selected Time limit: 1 Day

the base the triangle is four more then its height .if the area of the triangle is 49 square centimeters,find its base and height?

Oct 4th, 2015

Thank you for the opportunity to help you with your question!

For a triangle,

A=1/2*(4+h)*h=49

now solve for h

i.e. (4+h)*h=98

or,4h+h^2-98=0

or,h^2+4h-98=0

by solving this quadratic eq. 

the value of h will be approx 8cm, -12cm


Oct 4th, 2015

Since only the positive value make sense therefore consider h=8cm approx

Oct 4th, 2015

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