Find the area of a circle with a radius of 7 inches. Use 3.14 for pi

Question

myininaya · Answer

$$A=\pi r^2=\pi (7)^2=\pi (49)=49\pi $$

myininaya · Answer

but use 3.14 for pi
so we have
$$A=(3.14)(49)$$

anonymous · Answer

By using following formula
Area=pi*r^2

jim_thompson5910 · Answer

$$A=\pi r^2$$


$$A=(3.14) (7)^2$$


$$A=(3.14) (49)$$


$$A=153.86$$

So area is roughly 153.86 square inches.

myininaya · Answer

(1)
              (1)(3)
                3.14
                 * 49
         ---------------- 
                  2826 
              +12560
               ----------
                153.86         since decimal was over twice in one over the #s

amistre64 · Answer

$$\int_{0}^{7}2pi\ r\ dr$$