Basic Geometry : How to find the perimeter of a square

Study concepts, example questions & explanations for Basic Geometry

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Example Questions

Example Question #51 : How To Find The Perimeter Of A Square

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #238 : Squares

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #51 : How To Find The Perimeter Of A Square

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #52 : How To Find The Perimeter Of A Square

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #53 : How To Find The Perimeter Of A Square

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #56 : How To Find The Perimeter Of A Square

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #901 : Basic Geometry

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #902 : Basic Geometry

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #903 : Basic Geometry

Find the perimeter of a square inscribed in a circle that has a diameter of .

Possible Answers:

Correct answer:

Explanation:

1

Notice that the diameter of the circle is also the diagonal of the square. The diagonal of the square is also the hypotenuse of a right isosceles triangle that has the sides of the square as its legs.

Now, use the Pythagorean theorem to find the length of the sides of the square.

 

Now, substitute in the value of the diagonal to find the length of a side of the square.

Simplify.

Now, recall how to find the perimeter of a square:

Substitute in the value of the side to find the perimeter of the square.

Solve.

Example Question #491 : Quadrilaterals

Find the perimeter of a square whose side length is 7.

Possible Answers:

Correct answer:

Explanation:

The perimeter of a square is found by adding all the side lengths together. In a square there are two widths, two lengths, and they are equal. 

In other words, simply use the formula for the perimeter of a square and let,

To solve, simply use the formula for the perimeter of a square let,

thus,

.

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