side of a tringle are in the ratio of 7:3:5 and its perimeter is 300 cm . find its area
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Answered by
1
Answer:
7X+3X+5X=300
X=300/15
X=20
So Sides Are 7X=140
3X=60
5X=100
S=sum of all Sides So √s(s - a) (s - b) (s - c)
S here is 300
S-a = 160
S-b = 240
S-c= 200
So Root 300*160*240*200
=2,304,000,000
48000Ans
It took so long calculation And your Question was quite tough
Hope it helped you
Answered by
1
Answer:
Given sides ratio =7:3:5
Let the sides be 7x, 3x and 5x respectively
Given Perimeter=300cm
perimeter=a+b+c
300=7x+3x+5x
300=15x
x=20 cm
A=7x=7(20)=140 cm
B=3x=3(20)=60 cm
C=5x=5(20)=100 cm
s=Perimeter/2=300/2=150 cm
Area=
=
=2598.07 cm²
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