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maths form 3
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LINES AND ANGLES II 1In Diagram 1, PQRS is a straight line.
Diagram 1
Find the value of m.
[2 marks]
Answer:
2In Diagram 2, PQRS is a straight line.
Diagram 2
Find the value of x.
[2 marks]
Answer:
3In Diagram 3, PQRS is a straight line.
Diagram 3
Find the value of x.
[2 marks]
Answer:
4In Diagram 4, ABCD is a straight line.
Diagram 4
Find the value of m.
[1 mark]
Answer:
5In Diagram 5, ABC and DBE are straight lines.
Diagram 5
Find the value of y.
[2 marks]
Answer:
6Diagram 6 consists of four straight lines.
Diagram 6
Find the value of m.
[2 marks]
Answer:
7In Diagram 7, PQR is a straight line.
Diagram 7
Find the value of y.
[2 marks]
Answer:
8Diagram 8 consists of four straight lines.
Diagram 8
Find the value of x.
[2 marks]
Answer:
9Diagram 9 consists of a few straight lines.
Diagram 9
Find the value of x + y.
[3 marks]
Answer:
10Diagram 10 consists of a few straight lines.
Diagram 10
Find the value of a + b.
[3 marks]
Answer:
Answer:1m = 180 110 = 70
2x = 180 132 = 48
3x = 180 111 = 69
4m = 180 54 = 126
5y = 180 (180 121) 36 = 85
6m = 180 (180 101) (180 123) = 180 79 57 = 44
7y = 180 EQ \F(180 50,2) = 180 65 = 115
8x = EQ \F(360 (180 99) (180 125),4) = EQ \F(224,4) = 56
9x = 360 (180 62) 122 = 1208y = x = 120y = EQ \F(120,8) = 15x + y = 120 + 15 = 135
10a = 360 (180 31) 95 = 1162b = a = 116b = EQ \F(116,2) = 58a + b = 116 + 58 = 174