Mathematics Knowledge
Yesterday I presented a question about the area of a circle.
What is the area of a circle if the radius is 4?
In order to answer this question, it is essential to know the formula for the area of a circle. As an ASVAB tutor, I remind my students of the importance of knowing the formulas for geometry. I remind them of the need to study the formulas for circumference, area, surface area and volume of a variety of shapes.
The formula for the area of a circle is:
A = pi x radius squared
A =pr2
p = 3.14
A = 3.14 x 42
A = 3.14 x 16 = 50.24
Area = 50.24
Did you know how to answer this question?