estimate square roots

Front

What is the approximate value of \( \sqrt{200} \)?

Back

Between 14 and 15.

Front

What are the possible values of \( x \) in the equation \( x^2 = \sqrt{49} \)?

Back

\( x = 7 \) or \( x = -7 \)

Front

If the area of a square is 100 cm², what is the formula to find the perimeter?

Back

Perimeter = 4 × side length, where side length = \( \sqrt{100} = 10 \) cm, so Perimeter = 40 cm.

Front

What is the value of \( 3^{-3} \)?

Back

\( \frac{1}{3^3} = \frac{1}{27} \)

Front

Estimate the square root of 20. What is the closest whole number?

Back

Approximately 4.2.

Front

What is the definition of a square root?

Back

A square root of a number is a value that, when multiplied by itself, gives the original number.

Front

How do you estimate square roots of non-perfect squares?

Back

Find two consecutive whole numbers between which the square root lies.

Front

What is the square root of 64?

Back

8.

Front

If \( x^2 = 36 \), what are the possible values of \( x \)?

Back

\( x = 6 \) or \( x = -6 \)

Front

What is the perimeter of a square with a side length of 5 cm?

Back

20 cm.