Mathematics
Junior High
(6)の、この問題の最後のところはなんでa=2s−b
━ じゃないんですか?
h
9-7
=D
h
S2
4
S2
S=4(9+D)-
(a+b)h=2S
2
I
=D (a+b)h [a]
(6) S-
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉