Question

Heyyy answer plz ,zzzz​

Answer 1

◼️ANSWER :-

▪️As we are provided the sides of Triangle

= 120 cm , 170 cm and 250 cm

▪️Now as we know that

• Area of a triangle using heron's formula

= $\sqrt{S (S-a)(S-b)(S-c)}$

▪️In which

→ S = Semi-perimetre of Triangle

$= \sf{ \dfrac{a+b+c}{2}}$

And a , b and c are the respective length of sides.

▪️Then

→ a = 120 cm

→ b = 170 cm

→ c = 250 cm

▪️Semi-perimetre

$= \sf{ \dfrac{120+170+250}{2}}$

$= \sf{ \dfrac{540}{2}}$

$\sf{ = 270}$

▪️Now using heron's formula

$\sqrt{S (S-a)(S-b)(S-c)}$

$=\sqrt{270(270-120)(270-170)(270-250)}$

$=\sqrt{270(150)(100)(20)}$

$= \sqrt{ 81000000}$

$= \sqrt{ 81 \times 1000000 }$

$= \sqrt{ 9^2 \times 10^6 }$

$= 9^{2/2} \times 10^{6/2}$

$= 9 \times 10^3$

$= 9000$

or

$\bold{ANSWER\: = \:9000 \:cm^2}$

Answer 2

Answer:

Step-by-step explanation:

◼️ANSWER :-

▪️As we are provided the sides of Triangle

= 120 cm , 170 cm and 250 cm

▪️Now as we know that

• Area of a triangle using heron's formula

=  

▪️In which

→ S = Semi-perimetre of Triangle

And a , b and c are the respective length of sides.

▪️Then

→ a = 120 cm

→ b = 170 cm

→ c = 250 cm

▪️Semi-perimetre

▪️Now using heron's formula

or