side of. a. triangle. are in. the. ratio 2:3:4 and it's. perimeter is 90 m. find its. area
himsharma8770:
please not common again and again
Answers
Answered by
6
Answer:
the first side of the triangle's proportion share rate is 2/9.
the second side of the Triangle's proportion share rate is 3/9.
the third side of the Triangle's proportion share rate is 4/9.
therefore, the first side is (902/9)=20cm the second side is (90x3/9)=30cm
the third side is (90x4/9)=40cm
Step-by-step explanation:
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Answered by
0
Answer:
75√15 sq.m
Step-by-step explanation:
let the sides of the triangle are 2x, 3x and 4x.
perimeter of triangle = 90m
sum of all sides =90
2x+3x+4x = 90
9x =90
x = 90/9
x = 10
so, sides of triangle are 20m (2x = 2×10 =20), 30m (3x = 3×10 =30) and 40m (4x = 4×10 =40)
Area of traingle = √s(s-a)(s-b)(s-c)
=√90/2(90/2-20)(90/2-30)(90/2-40)
=√45(25)(15)(5)
=√9×5×5×5×5×3×5
=5×5√3×3×3×5
=5×5×3√3×5
=75√15 sq.m
what's the proof
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Matlab?
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