3.5 - Working with Formulas

Front

What is the formula for the circumference of a circle?

Back

The circumference (C) of a circle is calculated using the formula: C = 2πr, where r is the radius.

Front

How do you convert Fahrenheit to Celsius?

Back

To convert Fahrenheit (F) to Celsius (C), use the formula: C = (F - 32) × 5/9.

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter (P) of a rectangle is calculated using the formula: P = 2(length + width).

Front

What is the formula for the area of a rectangle?

Back

The area (A) of a rectangle is calculated using the formula: A = length × width.

Front

What is the relationship between the radius and circumference of a circle?

Back

The radius (r) is half of the diameter (d), and the circumference (C) can be expressed as C = πd or C = 2πr.

Front

If the radius of a circle is doubled, how does the circumference change?

Back

If the radius is doubled, the circumference also doubles.

Front

What is the area of a circle?

Back

The area (A) of a circle is calculated using the formula: A = πr², where r is the radius.

Front

What is the formula for converting Celsius to Fahrenheit?

Back

To convert Celsius (C) to Fahrenheit (F), use the formula: F = (C × 9/5) + 32.

Front

How do you find the length of one side of a rectangle if you know the perimeter and the width?

Back

If you know the perimeter (P) and the width (w), you can find the length (l) using the formula: l = (P/2) - w.

Front

What is the formula for the area of a triangle?

Back

The area (A) of a triangle is calculated using the formula: A = 1/2 × base × height.