the perimeter of a rectangular field is 4 20 m and its sides are in the ratio of 6 : 7 :8 find the area i will mark u a brainlist definetly
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Given:
Sides of a triangle are in ratio of 6:7:8
Perimeter of triangle is 420 m.
Solution:
Let the common multiple be x.
So,
6x+7x+8x=420
21x=420
x=20.
Side a=6x=6×20=120
Side b=7x=7×20=140
Side c=8x=8×20=160
According to Heron's formula,
Area of triangle...
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hi mate.....
Step-by-step explanation:
perimeter =420.
sides = 6:7:8
so = 6x, 7x, 8x
side =6x+7x+8x=420
=(6+7+8)*x=420
=21*x=420
=x = 420/21
=x =20
when three sides of rectangle in ratio are given,
=a/2+b/2+c/2=side of a rectangle
a=6x=6*20=120
b=7x=7*20=140
c=8x=8*20=160
=120/2+140/2+160/2
=210.