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Questions and Answers
In the figures provided, where AOB is a straight line, what is the value of the unknown in figure (a)?
In the figures provided, where AOB is a straight line, what is the value of the unknown in figure (b)?
31°
In the figures provided, where AOB is a straight line, what is the value of the unknown in figure (c)?
100
In the figures provided, where AOB is a straight line, what is the value of the unknown in figure (d)?
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If y° = 45° and z° = 86°, find the value of x in the straight line angles x, y, and z.
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If x° = 2y° and z° = 3y°, find the value of y in the given equations for the angles x, y, and z on a straight line.
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In each of the figures provided, find the value of the unknown in sub-figure (a).
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In each of the figures provided, find the value of the unknown in sub-figure (b).
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In each of the figures provided, find the value of the unknown in sub-figure (c).
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In each of the figures provided, find the value of the unknown in sub-figure (d).
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If AOE=90° and BÔD=48°, what is the value of AỘC in the provided figure of intersecting lines?
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If AOE=90° and BÔD=48°, what is the value of DÔE in the provided figure of intersecting lines?
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Study Notes
Geometry Problems
Question 5: Finding Unknown Angles
- Given a straight line AOB, find the unknown angles in each figure:
- Figure (a): Angle AOC is unknown
- Figure (b): Angles BOC and BAO are 42° and 73° respectively
- Figure (c): Angle ACB is 80° and sides are 4 units
- Figure (d): Angles ACD and BCD are 4d + 16° and 2d + 14° respectively
Question 6: Angles on a Straight Line
- Three angles x, y, and z lie on a straight line:
- If y = 45° and z = 86°, find x
- If x = 2y and z = 3y, find y
Question 7: Finding Unknown Angles
- Find the unknown angles in each figure:
- Figure (a): Angles are 67°, 52°, and 135°
- Figure (b): Angles are 5b°, 46°, and 3b°
- Figure (c): Angles are 16c, 4c°, and 4c°
- Figure (d): Angles are 6d, (7d + 23)°, and 139°
Question 8: Angles on a Straight Line
- Given AOB and COD are straight lines, and AOE = 90° and BÔD = 48°:
- Find AỘC
- Find DÔE
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Description
Solve geometry problems involving straight lines and angles, including finding unknown angles and understanding relationships between angles on a straight line.
