class 8 math lesson 06(geometry)
TRANSCRIPT
-
1
1
-
06
-
3
4 5
32+42=52
9+16=25
-
...
-
. ( )
-
C D
E
B
A
a b c
a
b
c
-
() () ,
() BC D ,ABC
90C222 CBACAB
ABC90C
2222 BCADCDAB
-
CB
A
a
bc
() ? () ?
() a=3,b=4 , c=?
-
. ( )
TRANSCRIPT
1
1
06
3
4 5
32+42=52
9+16=25
...
. ( )
C D
E
B
A
a b c
a
b
c
() () ,
() BC D ,ABC
90C222 CBACAB
ABC90C
2222 BCADCDAB
CB
A
a
bc
() ? () ?
() a=3,b=4 , c=?
. ( )