Find the distance between the following pair of points
回答 (3)
2007-06-18 1:44 am
✔ 最佳答案
set a mid point at (-4,-4),length them ,triangle is formed(3,-4)-(-4,-4)=7
(-4,-4)-(-4,-5)=1
the height is 7
the width is1
use pyth. theroem
7(7)+1(1)=x(x) (reason : Pyth. theroem)
49+1=x(x)
x(x)=50
x=70.71067812
參考: me
2007-06-19 12:02 am
√ ((3-(-4))^2+(-4-(-5)^2)
=√(49+1)
=√50
=7.07
=√(49+1)
=√50
=7.07
2007-06-17 10:32 pm
(3,-4) = 3-(-4) =7
(-4,-5) = -4-(-5) = 1
(-4,-5) = -4-(-5) = 1
收錄日期: 2021-04-13 15:02:13
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https://hk.answers.yahoo.com/question/index?qid=20070617000051KK01972