1. a之長(zhǎng)度為何? -<c=US a. 29.4015 b. 29.4105 c. 29.4510 =4vy@7/ 2. b之長(zhǎng)度為何? >L|;|X!m9\ a. 24.4779 b. 24.7479 c. 24.7749 @:;)~V 3. c之長(zhǎng)度為何? a[v0%W ]u a. 36.3781 b. 36.7381 c. 36.8137 q?,).x
nN 4. 紅色剖面線區(qū)域之週長(zhǎng)為何? w4_ U0
n3 a.79.1178 b. 79.1718 c. 79.1871 w:??h4lt 5. 藍(lán)色剖面線區(qū)域之面積為何? #&cI3i a. 313.1542 b. 313.4152 c. 313.5142