what is the area of triangle whoose sides are 13cm,14cm,and15cm.
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Area of triangle=√ s(s-1)-(s-2)-(s-3)
perimeter=?
13+14+15=42
S=a+b+c/2
s=42/2
s=21
s=√21(21-13)(21-14)(21-15)
s=√21(8)(7)(6)
s=√21×8×7×6
s=84cm^2
hope it helps
perimeter=?
13+14+15=42
S=a+b+c/2
s=42/2
s=21
s=√21(21-13)(21-14)(21-15)
s=√21(8)(7)(6)
s=√21×8×7×6
s=84cm^2
hope it helps
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