Two sides of a triangle are 13cm and 14cm and its semi-perimeter is 18cm find the third
side of the triangle.
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1
Answer:
the aboove one is correct
Step-by-step explanation:
NavyaThakral:
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Answered by
0
Answer:
first side (a) = 13cm
second side (b) = 14cm
let third side (c) = x
semi perimeter = (a+b+c)/2 = 18cm
=(13+14+x)/2 = 18
=(27+x)/2=18
=27+x=18×2
=27+x=36
=x=36-27
=x=9cm
hence, the third side is 9cm.
Step-by-step explanation:
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