The lengths a triangle are x+1 ,2x+1,x+1 find it's area
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(2x+1)square2=(x+1) sqaure2+(x+1)sqare2
4xsqaure2+1+4x-2xsqare2-2-4x
4xsqre2=1
x=1/2
traingle area =1/2×3/2×3/2
9/8
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