Question

find the value of C if in a triangle S=13,a=8,andb=7.​

Answer 1

Answer:

Semi-perimeter = 13cm

Perimeter = $13 \times 2 = 26$

a = 8cm

b = 7cm

c = (26-15)cm

c = 11 cm

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Answer 2

Answer:

11

Step-by-step explanation:

s=a+b+c/2 perimeter of a triangle( by herons formula)

13=8+7+c/2

26=15+c

26-15=c

11=c