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Wilma used 25 square centimeters of construction paper to make a card in the shape of a square. She put a lace border around the card. How many centimeters of lace did Wilma use?

Respuesta :

RioTheNinja
To find the perimeter of a 2D figure, you add up the lengths of all the sides. In this case, the figure is a square, a polygon that has all equal sides. So, you know that every side on the square is 25 cm long.

25 + 25 + 25 + 25 = 100

So, your answer is 100 cm of lace.

The total centimeters of lace which Wilma use to put a lace border around the square card is 20 centimeters.

What is area of square?

Area of square is the square of its sides length. It can be given as,

A=a²

Here, (a) is the length of the side of the square

Wilma used 25 cm² of construction paper to make a card in the shape of a square. Let the side of the paper is a cm. Thus,

A=a²

25=a²

5²=a²

5=a

Thus, the side of the paper card is 5 cm long. Now there is total 4 sides of square and all are equal. Thus, the cm of lace did Wilma use is,

P=5 x 4

P=20 cm.

Hence, the total centimeters of lace which Wilma use to put a lace border around the square card is 20 centimeters.

Learn more about the area of square here;

https://brainly.com/question/1658516

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