2학년 1반 온라인수학과제의 복제물의 복제물 by 가좌여중마스터

9월1일 학습지(학습지 없으면 풀이와 답만 올리세요)

kjgms01 — 2021-08-31 03:26:30 UTC

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30. 125. 90. 124. 6cm

40. 90. 5. 10. 6

삼각형 abc(합동)fde (RHS)
삼각형 ghi(합동) Nmo (RHA)

6cm. 35. 40. 2. 10. 4

각 a+각 b+68= 180
각 a+각 b=112
각 a+각 b+ 각 c=180
각 c= 180-112
=68

(선분)BD= 10cm

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X=10cm

Y=7cm

X=105

Y=75

X=3cm

Y=4cm

X=10cm

Y=6cm

A=80

D=100

X=7cm

Y=4cm

X=65

Y=115

X=60

Y=70

X=4cm

Y=6cm

X=35

Y=50

(1) 두 대각선이 서로를 이등분하기 때문

(4) 한 쌍의 대변이 평행하고 그 길이가 같기 때문

X=8cm

X=65

X=50

(선분)DE=4cm

(선분)FE=10cm

BEC=90

(선분)ED=4cm

36cm

30cm

FCD=61

<4>

<1>

4배

<4>

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