Using π = 22/7, what is the area of a circle with radius 21 cm?
Note
Area of a circle is found with A = πr². Using π = 22/7, A = 22/7 × 21² = 1386 cm².
Using π = 22/7, what is the area of a circle with radius 21 cm?
Area of a circle is found with A = πr². Using π = 22/7, A = 22/7 × 21² = 1386 cm².