Question

1. Karen has a square cartolina whose sides measure 60

cm each. She cuts the cartolina into two equal rectangles.

Find the perimeter of one piece of rectangle.

2. A rectangle has a length of 30 cm and a width smaller

by 5 cm. What is its perimeter?​

Answer 1

If Karen cut her square cardboard into two equal rectangles, the perimeter of those rectangles is 180cm. On the other hand, if the rectangle is 25 cm wide, the perimeter would be 110 cm.

What is the perimeter of a geometric figure?

The perimeter of a geometric figure is the measure of the length of all its sides. In this case, if Karen has a square of cardboard with a side of 60cm, it can be inferred that she would have two rectangles with a height of 30cm and a base of 60cm, so the perimeter would be:

• 30cm + 60cm + 30cm + 60cm = 180cm

On the other hand, if the rectangle has a base of 30cm and a height of 25cm, the perimeter would be:

• 25cm + 30cm + 25cm + 30cm = 110cm

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