Find the area of the circle shown, correct to one decimal place.
A circle has a radius of $47$47 cm.
A circle has a diameter of $90$90 cm.
If the radius of the circle is $9$9 cm, find its area correct to two decimal places.
Investigate the concept of irrational numbers, including π
Investigate the relationship between features of circles such as circumference, area, radius and diameter. Use formulas to solve problems involving circumference and area