Question

find the value of c if in a triangle s=13, a=8, b=7.​

Answer 1

Value of c = 11 if  in a triangle s=13, a=8, b=7.​

Step-by-step explanation:

s = semi perimeter of triangle

a , b  & c are sides of triangle

s = (a + b + c)/2

s = 13

a = 8

b = 7

c = ?

13 = (8 + 7 + c)/2

=> 26 = 15 + c

=> c = 26 - 15

=> c = 11

Value of c = 11 if  in a triangle s=13, a=8, b=7.​

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Answer 2

Answer:

c=11

Step-by-step explanation:

hence, c = ?, s = 13, a = 8, b= 7

= s = a + b + c/ 2

= 13 = 8 + 7 + c/2

= 26=15/c

= c =26 - 15

c=11

I hope it is helpful for you