1) What is the circumference of the circle. a) Inner region b) The boundary c) Outer region 2) What is a diameter a) Cuts through the circle b) passes through the centre c) on the circle 3) What is the symbol of radius? a) d b) π c) r 4) what is the formula for circumference? a) rx2 b) 2πr c) d/2 5) Value of π? a) 31.4 b) 3.14 c) .314

排行榜

视觉风格

选项

切换模板

恢复自动保存: