Question

Question
The perimeter of a triangle is 70 cm then find the value of s​

Answer 1

Step-by-step explanation:

A=70cm

B=80cm

C=90cm

Semi-perimeter =

2

(70+80+90)

=

2

240

=120cm

Area of triangle =

s(s−a)(s−b)(s−c)

=

120(120−70)(120−80)(120−90)

=

120×50×40×30

=

4×3×10×5×10×3×10×4×10

=4×3×100

5

Answer 2

Answer:

hey it is 35 cm

Step-by-step explanation:

here s means nothing but semiperimeter

so semiperimeter =perimeter/2

ie 70/2

ie 35cm

therefore,,s=35 cm

I hope u cracked the logic now

pls mark it as brainliest