Question

the side of a triangle aro in the ratio 3:2:5
and its perimeter 30 cm. The length of the longest
side is
20 cm
15.0m
lo cm
12 cm​

Answer 1

Answer:

As length are in the ratio 3:2:5 and have perimeter 30cm

.....We could write it as

3x+2x+5x=30 .

.Solving this we get. x=3

As 5x is the longest side we will write it as

5x = 5×3 = 15 cm

Step-by-step explanation:

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Answer 2

Answer:

1/3

Step-by-step explanation:

Let the ratio be 3x, 2x, 5x

Then,

perimeter of triangle= sum of all angles

30 = 3x + 2x+ 5x

30 = 3x + 7x

30 = 10x

x = 10 / 30

x = 1 /3