Question

Найдите площадь круга, считая пи равным 22/7 если : а) его радиус R = 6 см б) его диаметр D = 14 дм Прошууууу

Answer 1

S=Пr2
а)S=22/7х6х6=113целых 1/7
б)d=14:2=7(см)-радиус
S=22/7х7х7=154

Answer 2

Calculating the Area of a Circle:

To find the area of a circle, we can use the formula:

Area = π * r^2

Where: - π is the mathematical constant approximately equal to 22/7. - r is the radius of the circle.

Let's calculate the area for the given values of radius and diameter.

a) When the radius R = 6 cm: - Using the formula, the area A = π * (6 cm)^2. - Substituting the value of π as 22/7, the area A = (22/7) * (6 cm)^2.

b) When the diameter D = 14 dm: - We know that the radius r is half the value of the diameter, so r = 14 dm / 2 = 7 dm. - Now, using the formula, the area A = π * (7 dm)^2. - Substituting the value of π as 22/7, the area A = (22/7) * (7 dm)^2.

Let's calculate the areas for both cases.