Question

two of sides of triangle are26cm and 30cm and perimeter of the triangle is 84 cm find its area​

Answer 1

Answer: 28cm => third side

Step-by-step explanation:

a=26,b=30cm, c=28cm

s= (a+b+c)/2

s= (26+30+28)/2

s=42cm

By heron's formula,

[s(s-a)(s-b)(s-c)]^1/2

Answer we get is 336cm^2

Answer 2

Answer:

Step-by-step explanation:

Answer is in the attached below

Hope this helps