Question

in a triangle A=15cm B=7cm and S=15cm find the length of side C
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Answer 1

Answer:

he one side in a equilateral triangle with perimeter of 30cm is 30/3=10cm

the 2 sides of the triangle is 15 cm and 7 cm then,

the third side be 'x'

15+7+x=30

22+x=30

x=30-22

x=8cm

Step-by-step explanation:

Answer 2

Length of side c = 23 cm

Given:

In a triangle a = 15 cm b = 7 cm and S = 15cm

To find:

Find length of c

Solution:

Given In a triangle length of side a = 15 cm and

                              Length of side b = 7cm

Given Semi perimeter S = 15 cm

As we know the formula for semi perimeter of a triangle is given by

                Semi perimeter = (a+b+c)/3  

Let c length of the side c

⇒ Semi perimeter = (a+b+c)/3  

⇒ 15 = (15+7+c)/3

⇒ 45 = 22 + c

⇒ c = 23 cm

Length of side c = 23 cm

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