dfgt1401 dfgt1401

27-12-2020
Mathematics

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The lengths of the sides of a triangle are 15cm, 20cm, 30cm. What are the lengths of the sides of a similar triangle that has a perimeter of 26cm?

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pancake1127 pancake1127

27-12-2020

second triangle:

a+b+c=26cm

those 3 nombers have 5 in common

so 3x+4x+6x=26(divided each by 5)

13x=26

x=2

so: 6+8+12=26cm. (plug the value of x)

any questions?

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