µÚÒ»µ¥Ôª×ÛºÏÁ·Ï°¿ìÀÖʵ¼ùµÚÒ»Ìâ´ð°¸
£¨1£©ÎÞÊý£»ÏàµÈ£»2±¶
£¨2£©ÎÞÊý£»2
£¨3£©Ô²£»37.68
£¨4£©4£»12.56£»12.56
£¨5£©2.5£»19.625
µÚÒ»µ¥Ôª×ÛºÏÁ·Ï°¿ìÀÖʵ¼ùµÚ¶þÌâ´ð°¸
£¨1£© | £¨2£© | £¨3£© |
B | B | A |
µÚÒ»µ¥Ôª×ÛºÏÁ·Ï°¿ìÀÖʵ¼ùµÚÈýÌâ´ð°¸
£¨1£©C=31.4cm
S=78.5cm2
C=30.84cm
S=56.52cm2
µÚÒ»µ¥Ôª×ÛºÏÁ·Ï°×ß½øÉú»î´ð°¸
£¨1£©942m2
£¨2£©188.4m2
µÚÒ»µ¥Ôª×ÛºÏÁ·Ï°ÖÇ»ÛÌáÉý´ð°¸