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From Karnataka Open Educational Resources
→Activity No # 2.Properties of a Cyclic quadrilateral
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# Produce AB to form a ray AE such that exterior angle CBE is formed.
# By paper folding get chords AB, BC, CD and DA in order.
# By paper folding get chords AB, BC, CD and DA in order.
# Draw AB, BC, CD & DA. A cyclic quadrilateral ABCD is obtained.
# Draw AB, BC, CD & DA. A cyclic quadrilateral ABCD is obtained.
+# Produce AB to form a ray AE such that exterior angle CBE is formed.
# Make a replica of cyclic quadrilateral ABCD using carbon paper.
# Make a replica of cyclic quadrilateral ABCD using carbon paper.
# Cut the replica into 4 parts such that each part contains one angle .
# Cut the replica into 4 parts such that each part contains one angle .
# Draw a straight line on a paper.
# Draw a straight line on a paper.
−# Place angle BAD and angle BCD adjacent to each other on the straight line.Write the observation.
+# Place the two oppoaite angles, angle BAD and angle BCD adjacent to each other on the straight line.Write the observation.
−# Place angle ABC and angle ADC adjacent to each other on the straight line . Write the observation.
+# Place other two opposite angles, angle ABC and angle ADC adjacent to each other on the straight line . Write the observation.
−# Make a replica of angle ADC and place it on angle CBE . Write the observation.
# Make a replica of angle ADC and place it on angle CBE . Write the observation.
Developmental Questions:
Developmental Questions:
