Question

the two sides of the triangle are 12 cm and 6 cm respectively . find the third side if semi perimeter is 13 cm

Answer 1

Answer:

let suppose third side is x sum of all side equal to 13

Answer 2

Semi perimeter = sum of sides/2

Let the third side be “x”.

= (x+12+6)/2 = 13

= x/2 + 6 + 3 = 13

= x/2 = 4

= x = 4×2=8

→Hence, the third side is of measure 8cm.

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