將長(zhǎng)度精度設(shè)置為小數(shù)點(diǎn)后三位,繪制以下圖形,AB長(zhǎng)度為:()。
A.49.626 B.59.626 C.79.626 D.99.626
A.277.571 B.271.541 C.179.571 D.247.547
將長(zhǎng)度精度設(shè)置為小數(shù)點(diǎn)后三位,繪制以下圖形,陰影面積、周長(zhǎng)為:()。
A.49811.727,1784.844 B.44862.727,1387.844 C.49861.727,1384.844 D.44761.727,1084.844