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3 years ago

How many line segments are in the 20th figure?

Mathematics

1 answer:

Trava [24]3 years ago

5 0

The first figure has 3 line segments.

the second figure has 3+3 =3*2 = 6 line segments

the third figure has 3+3+3 = 3*3 = 9 line segments

the fourth figure has 3+3+3+3=3*4=12 line segments...

so it is clear that:

the 20th figure has 3*20=60 line segments.

Answer: 60

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