5\r- 1^_B`abxA.\rx--lx+15=x-15\r5\rlx= 3 0\rx=150\r3 i - i , Q 1cB`ab150A.\r- : 84 -36: 36=4 : 38*1 - 1 =32d\r4\r32x 1 =24d\r4\r32-1Q 1efghKij2k `lfmh` j32dP\r- :3.14x20x30+3.14x 20+22\r=3.14x20x30+3.14xl02\r=62.8x30+3.14x100\r=1884+314\r=2198 n&op\r=21.98 ?n&?p\r3.14x 20+22x30+1000\r=3.14X102 X 30^1000\r=3.14x100x30+1000\r=314*30/1000\r=9420+1000\r=9.42 q\r33-1Q 1 % & ? `51*9.42r\r% 1 2 & ' 1 3 &.\rs 1KtuKv\wx!:i+ ^ j 1=65\rKtuKv\iy!1 : i + =8:9\rz{uKv\|}!1R 2 =27 20\r34-1Q 1KtuKv\|}\!~27:20.\r- 10.5x4x4x2=16n&p\r©0.5x0.5x4x2=21 2 ^ *\rQ 1,
1&p.\r35-1/ 3 2 / \~2&p.\r- :200x90%=180 ?S 180x80%=144 ?S \r36-1Q 1144S.\r% 1 3 & ' 1 3 &
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