The size of a triangle are in ratio of 3:2:5 and its perimeter is 30cm, Find the length of longest side.
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You can just make the sides of the triangle 3x, 2x, and 5x, where x is the scaling factor that will bring the total up to 30cm.
Then, simply add and solve for x:
3x+2x+5x=30
10x=30
x=3 cm
Your longest side is the 5x, so its length would be 5*3= 15cm. answer.
Then, simply add and solve for x:
3x+2x+5x=30
10x=30
x=3 cm
Your longest side is the 5x, so its length would be 5*3= 15cm. answer.
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