see attachment
ANGLES
Grade 10 – Investigation Practice
Complete this activity on binder leaf and
Submit for marking
⃞ .
10
Notes: Angle Relations & Parallel Lines
Pairs of angles are formed when parallel lines are cut by a transversal.
Their relationship can be any of the following:
Alternate angles
Angles at a point
Co-interior angles
Corresponding angles
Supplementary
Vertically opposite angles.
Type Your Answer Here
1. The diagrams below show a 5-shelf storage rack made of steel wire.
The side view shows a steel bar welded at an angle to provide structural support.
This bar makes an angle of 120° with one of the shelves. Use this measure to determine the angles marked by the letters.
(5 marks)
Type Your Answer Here
Type Your Answer Here
Type Your Answer Here
Type Your Answer Here
Bonus
2. Draw a model of a building or town on binder leaves and submit.
The model must include:
A pair of parallel lines cut by a transversal.
At least 3 different types of angles (straight, right, acute, obtuse)
The size of a pair of:
Alternate angles
Co-interior angles
Corresponding angles
½ – Inclusion of parallel lines
½ – Inclusion of a transversal
½ – Inclusion of 3 types of angles
1½ – Accurate labeling of pairs of angles
2- Overall appearance and aesthetics.
(5 marks)