Question

the radius of a circle is 7cm.Find its area and circumference​

Answer 1

Answer:

Step-by-step explanation:

Please follow

Answer 2

Answer:

Area = 154 cm²

Circumfrence = 44 cm

Step-by-step explanation:

given , the radius, r of the circle = 7cm

we have , area, A = $\pi r^2$ sq.units

                             = $\frac{22}{7}$ * 7*7 cm²

                             = 22*7 cm²

                             = 154 cm²

also, we know circumfrence, p = 2$\pi r$ units

                                                   = 2 * $\frac{22}{7}$*7 cm

                                                   = 2 * 22 cm

                                                   = 44 cm