Question

The radius of sides of a triangle are 13 12 25 find its are if perimeter of the triangle is 420cm​

Answer 1

Answer:

104571368.65

Step-by-step explanation:

by herons formula

we know that semi perimeter =s

so , s=perimeter/2

s=420/2

s=210cm

area of triangle=√s(s-a)(s-b)(s-c) cm^

√210(210-13)(210-12)(210-25)cm^

√210*197*198*185 cm^

104571368.65 cm^ is the area of triangle

hope it is helpful to you