1. Finding Unknown Angles

2. Math and Fairness
Red batik
Kosambi ? ? ?
Good English

3. Known Angles A 4 equal sides N M B D C K L Opposite angles are equal.
Known Angles A
4 equal sides N M B D C K L
Opposite angles are equal
The sum of angles between 2 parallel sides

4. Known Angles R Q Opposite sides are equal O P.
Known Angles R Q
Opposite sides are equal O P
Opposite angles are equal
The sum of angles between 2 parallel sides

5. Known Angles Pair of parallel sides K J H I.
Known Angles
Pair of parallel sides K J H I
The sum of angles between 2 parallel sides

6. .
UnKnown Angles
The figure below is not drawn to scale. ABCD is parallelogram. BFE and CDE are straight lines. Find and
EDF
BEC. E A F D B C

7. .
UnKnown Angles
TEXTBOOK P.36 NO. 14

8. .
UnKnown Angles
The figure below is not drawn to scale. ABCD is parallelogram. AEF and BCF are straight lines. Find and
AED
CFE. A D E B C F

9. .
UnKnown Angles
WORKBOOK PP.24 – 26