1米直高,坡度1:0.5坡度,斜高是多少 垂直20㎝,1:0.5的坡度,问斜面应该是多少？
1:0.5\u5761\u5ea6\u6bcf\u7c73\u659c\u591a\u5c11\u5761\u5ea6\uff1a\u662f\u6307\u5761\u9762\u7684\u5782\u76f4\u9ad8\u5ea6\u548c\u6c34\u5e73\u8ddd\u79bb\u7684\u6bd4\u3002
\u89e3\uff1a
\u5761\u5ea6=1\uff1a0.5=x\uff1a1
\u2234x=2(\u7c73)
\u5373\u5761\u5ea6\u4e3a1\uff1a0.5\u65f6\uff0c\u5782\u76f4\u9ad8\u5ea62\u7c73\u6240\u5bf9\u5e94\u7684\u6c34\u5e73\u8ddd\u79bb\u4e3a1\u7c73\u3002
☞\u5761\u5ea6\u4e5f\u53ef\u7406\u89e3\u4e3a\u5761\u89d2\u7684\u6b63\u5207\u503c\uff0c
tan(\u5761\u89d2)=1\uff1a0.5=2\uff1a1=2
\u5219\u5761\u89d2=63\u00b024\u2018
\u7b54\uff1a\u6bcf\u7c73\u7684\u6c34\u5e73\u8ddd\u79bb\uff0c\u5782\u76f4\u9ad8\u5ea6\u4e0b\u964d\u4e862\u7c73\uff0c\u6216\u5761\u89d2(\u503e\u659c\u89d2)\u4e3a63\u00b024\u2018\u3002
\u5782\u76f4\u9ad8\u5dee20\u5398\u7c73=0.2\u7c73
\u56e0\u4e3a\u5761\u5ea6=\u9ad8\u5dee/\u6c34\u5e73\u8ddd\u79bb=1/0.5
\u6240\u4ee5\u6c34\u5e73\u8ddd\u79bb=0.2\u00d70.5=0.1\u7c73
\u6839\u636e\u52fe\u80a1\u5b9a\u7406\uff0c\u659c\u9762\u8ddd\u79bb=\u221a(0.1^2+0.2^2)=0.1\u221a5\u7c73\u22480.236\u7c73
斜高是2.236米，
√[1^2+(1/0.5)^2]
=√5
≈2.236
绛旓細1绫崇洿楂,鍧″害1:0.5鍧″害,鏂滈珮鏄2.236绫筹紝鈭歔1^2+(1/0.5)^2]=鈭5 鈮2.236
绛旓細1锛0.5鐨鍧″害鎸囩殑鏄紝姣忓崌楂樹竴绫筹紝鍧″害涓5鍘樼背銆1锛0.75鐨勫潯搴︽槸锛屾瘡鍗囬珮1绫筹紝鍧″害涓0.75鍘樼背銆
绛旓細鎵浠ワ紝鍧″害涓猴細0.5/1*100%=50
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