?????
???????? ??????? ???- 1
2
??????a= ????? ?? ?????a =36 ?????. 1
?????????????????????????????????6????????????. 2
?????????? ???????? ??? ????? ???????????? ????????.3???
??????????????????????????????
???????????????? ????? ??? ????? ??????????? ???????? ???- ???????2
? ??? ??????? ??? ???????????? ???????? ????? ????????
????????? ????????? ??? ???? ?????????? ????????? ???????????-3
?????? ???????? ???????? ??? ?????? 12cm ?? 5cm ????? ?????? ??????
? ??????? ??? ??52+12 2 ?????????? ?????????? ????????? ???????
0
C=90 ,AC=7cm,BC=4cm ?? △ABC ????????????-4
?????????? ???????????? ????????? ????? ???????? ??? ?? ???
???????? ??? ?? 42+7 2
c =
c =
b=
AB=c , BC=a , AC=b ?? △ABC - 5 ?????c2=49 ,∠ C=90 0?????.1 0
0
?????a=11, c=61, ∠ C=90 ?????. 3
a =
?????b=12, c=9,
∠A=90 0
?????. 4
c =
?????a=15, b=25,
∠B=90
0
?????.5
∠C=90 0,AC=7cm,BC=4cm ?? △ABC ????????????-6
?????????? ???????????? ????????? ????? ???????? ??? ?? ???
???????? ??? ?? 42+7 2
A
B C
, AB=4cm ,CD=13cm
,
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