Mathematics
Senior High
Resolved
内接円の問題です。
答えが合っているか確認してほしいです。
三角形ABCの内接円の半径の長さを求めなさい。
AB 6, BC 7, CA = 5
6
A
5
ST
COSCABC = $
sin O=
256
7
13
7
s==x
3
216
Rx & x Q
9r= 656
r
2
65
=
656
3
r =
26
3
256
3
#
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