Jawaban:
1. 110°
2. 130°
3.PRS = 44
QRS = 46
4. 25
Penjelasan dengan langkah-langkah:
1. 70° + x = 180°
x = 180 ° - 70°
= 110°
2. ( 3x - 40 )° + 50° = 180°
3x - 40 = 180° - 50°
= 130°
3. ( x + 3 ) + ( x + 5 ) = 90
x + 3 + x + 5 = 90
2x + 8 = 90
2x = 90 - 8
= 82
x = 41
PRS = 41 + 3 = 44
QRS = 41 + 5 = 46
4. 5x + 70 = 180
5x = 180 - 70
= 110
x = 25
5. Sehadap :
A1 = A3
A2= A4
A3 = A1
A4= A2
B1 = B3
B2 = A4
B3 = B1
B4 = B2
C1 = C3
C2 = C4
C3 = C1
C4 = C2
D1 = D3
D2 = D4
D3 = D1
D4 = D2
Dalam Sepihak :
A3 = D2
B4 = C1
Luar sepihak :
A1 = D4
A2 = D3
B1= C4
B2= C3
Berseberanggan dalam :
A3 = C1
B4 = D2
Berseberanggan luar:
A1 = C3
B2= D4
semoga membantu^^
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Jawaban:
1. 110°
2. 130°
3.PRS = 44
QRS = 46
4. 25
Penjelasan dengan langkah-langkah:
1. 70° + x = 180°
x = 180 ° - 70°
= 110°
2. ( 3x - 40 )° + 50° = 180°
3x - 40 = 180° - 50°
= 130°
3. ( x + 3 ) + ( x + 5 ) = 90
x + 3 + x + 5 = 90
2x + 8 = 90
2x = 90 - 8
= 82
x = 41
PRS = 41 + 3 = 44
QRS = 41 + 5 = 46
4. 5x + 70 = 180
5x = 180 - 70
= 110
x = 25
5. Sehadap :
A1 = A3
A2= A4
A3 = A1
A4= A2
B1 = B3
B2 = A4
B3 = B1
B4 = B2
C1 = C3
C2 = C4
C3 = C1
C4 = C2
D1 = D3
D2 = D4
D3 = D1
D4 = D2
Dalam Sepihak :
A3 = D2
B4 = C1
Luar sepihak :
A1 = D4
A2 = D3
B1= C4
B2= C3
Berseberanggan dalam :
A3 = C1
B4 = D2
Berseberanggan luar:
A1 = C3
B2= D4
semoga membantu^^