Question

Вычислите площадь круга диаметр которого равен (1 )18 см (2) 3,6 метра

Answer 1

Площадь равна рr^2
r=d/2
d^2/4*p
1)18^2/4*p=81p см^2 (далее смотря за что принимается p)
2)3,6м=360 см
360^2/4*р=32400р см^2

Answer 2

I can help you with your math question. The area of a circle is given by the formula $$A = \pi r^2$$, where $r$ is the radius of the circle. The radius is half of the diameter, so we can substitute $r = d/2$ and get $$A = \pi (d/2)^2 = \pi d^2 / 4$$.

Now, for the first case, the diameter is 18 cm, so the area is $$A = \pi (18)^2 / 4 \approx 254.47 \text{ cm}^2$$.

For the second case, the diameter is 3.6 m, so the area is $$A = \pi (3.6)^2 / 4 \approx 10.18 \text{ m}^2$$.

I hope this helps you understand how to calculate the area of a circle. If you have any other questions, feel free to ask me.Ответь+подробно.+Вычислите+площадь+круга+диаметр+которого+равен+(1+)18+см+(2)+3,6+метра