SOLUTION: the length of of a triangle are x cm ,{x+1} and {x+2}cm determine x so that this triangle is the right angled triangle .
thank you in advance
this question is from the book m
Algebra.Com
Question 421485: the length of of a triangle are x cm ,{x+1} and {x+2}cm determine x so that this triangle is the right angled triangle .
thank you in advance
this question is from the book mathematics 6th edition written by teh keng seng
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
a^2+b^2=c^2
x^2+(x+1)^2=(x+2)^2
x^2+x^2+2x+1=x^2+4x+4
x^2-2x-3=0
(x-3)(x+1)=0
x=3
.
Ed
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