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A slime that turns into a space figure and produces mathematics question
(I like mathematics, so I wanted to draw a picture using mathematics.)
日本語
直方体ABCD-EFGHにおいて、AD=4 , AB=6 , BF=3 である。
その時、△ACFの面積Sを求めよ。
New character : Delt(slime)
(I like mathematics, so I wanted to draw a picture using mathematics.)
日本語
直方体ABCD-EFGHにおいて、AD=4 , AB=6 , BF=3 である。
その時、△ACFの面積Sを求めよ。
New character : Delt(slime)
Category Artwork (Digital) / Vore
Species Dragon (Other)
Size 587 x 1280px
File Size 165.5 kB
Eh it's been over a decade since I done this... God I'm old.
BF is 3 and BC is 4 so a^2+b^2=c^2
9+16=25 √25=5
CF=5
AB is 6 and BF is 3
36+9=45 √45≈6.708
AF≈6.708
AB is 6 and BC is 4
36+16=52 √52≈7.211
AC≈7.211
P≈5+6.708+7.211
H≈P/2
H≈18.919/2≈9.4595
I am sticking to thousandths so 9.46
Area=√(H(H-A)(H-B)(H-C))
Area≈√(9.46*4.46*2.752*2.249)≈√261.134
Area≈16.16
I showed my work so please let me know where I screwed up if it's wrong.
BF is 3 and BC is 4 so a^2+b^2=c^2
9+16=25 √25=5
CF=5
AB is 6 and BF is 3
36+9=45 √45≈6.708
AF≈6.708
AB is 6 and BC is 4
36+16=52 √52≈7.211
AC≈7.211
P≈5+6.708+7.211
H≈P/2
H≈18.919/2≈9.4595
I am sticking to thousandths so 9.46
Area=√(H(H-A)(H-B)(H-C))
Area≈√(9.46*4.46*2.752*2.249)≈√261.134
Area≈16.16
I showed my work so please let me know where I screwed up if it's wrong.
The formula I used is
√(((√45+√52+5)/2)*(((√45+√52+5)/2)-√45)*(((√45+√52+5)/2)-√52)*(((√45+√52+5)/2)-5)) and it seem that = √261 even! Was kind of surprised then again maybe I should not be as you probably took that number on purpose.
In my previous wrong answer, I had mixed up one operation on my calculator. It's kind of long with all the () that are needed for the precision.
√(((√45+√52+5)/2)*(((√45+√52+5)/2)-√45)*(((√45+√52+5)/2)-√52)*(((√45+√52+5)/2)-5)) and it seem that = √261 even! Was kind of surprised then again maybe I should not be as you probably took that number on purpose.
In my previous wrong answer, I had mixed up one operation on my calculator. It's kind of long with all the () that are needed for the precision.
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