Question

The area of a triangle whose sides are 13cm ,14cm and 15 cm is

Answer 1

Step-by-step explanation:

a= 13 , b = 14, c=15

s = (a+ b +c)/2

s = (13 +14 +15)/2

s = 42/2

s = 21

Using heron's formula

{s(s-a)(s-b)(s-c)} under root

{21 (21 -13)(21-14)(21-15)} under root

(21 × 8 × 7 × 6) under root

= 84

Area = 84 cm^2

Answer 2

Answer:

refer attachment..................