资讯

BBC1 年
Module 3 (M3) - Geometry and measures - Perimeter and area of sectors
of the area of the circle. \(A = \frac{135}{360} \times π \times 4^2\) \(A = 18.85 (2 d.p.)\) Calculate the perimeter of the sector. The perimeter is made up of an arc and two straight sides.
BBC1 年
Module 1 (M1) - Geometry & Measures - Circumference and area of circles
Save guides, add subjects and pick up where you left off with your BBC account. The perimeter of a circle is called the circumference. The shortest distance from the centre to the circumference is ...