Question

Find by heron 's formula
Perimeter 420
Ratio 6:7:8
Find the height also
Sides will be 120,140,160

Answer 1

Answer:

yep

Step-by-step explanation:

ANSWER

Let sides of △ are=6x,7x and 8x

Perimeter=6x+7x+8x=21x

21x=410

x=20

Sides are 120,140 and 160 m

Area =  

S(S−A)(S−B)(S−C)

​  

 [Heron's Formula]

S=  2

120+140+160  = 210 m

A=  210(210−120)(210−140)(210−160)

=2100  root 15  sq. m

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