Question

Find the third side of a triangle whose other two sides are 8 cm and 10 cm and semi perimeter is 14 cm.

Answer 1

Answer:

let the first side be a=8cm

second side be b=10cm

third. side be c= xcm

semi perimeter= (a+b+x)/2

14= (8+10+x)/2

28=18+x

10= x

Hence the thisd side is 10 cm ans.

Answer 2

Step-by-step explanation:

let the third side be c

given two sides are a= 8 cm

and b= 10 cm

given semi perimeter = (a+b+c )/2

14 = (8+10+c)/2

14×2 = 18+c

28= 18+c

28-18= c

10=c

thus the third side is 10 cm