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CIRCLES EQUAL CHORDS SUBTEND EQUAL ANGLES AT THE CENTER PowerPoint Presentation
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CIRCLES EQUAL CHORDS SUBTEND EQUAL ANGLES AT THE CENTER. JUHI MATHUR 2011. PROCEDURE. DRAW A CIRCLE OF ANY RADIUS ON THE CHART SHEET. 2. MARK CHORD AB OF MEASURED LENGTH ON THE CIRCLE. 3. MAKE ANOTHER CHORD CD OF SAME MEASUREMENT ON THE CIRCLE.

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slide1

CIRCLES

EQUAL CHORDS SUBTEND

EQUAL ANGLES AT THE CENTER

JUHI MATHUR

2011

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DRAW A CIRCLE OF ANY RADIUS ON THE CHART SHEET

2. MARK CHORD AB OF MEASURED LENGTH ON THE CIRCLE.

3. MAKE ANOTHER CHORD CD OF

SAME MEASUREMENT ON THE

CIRCLE

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4. JOIN THE CHORDS AB AND CD WITH CENTER O

5. YOU WILL GET TWO TRIANGLES OAB

AND OCD

6. COLOUR THE TWO TRIANGLES IN

TWO DIFFERENT COLOURS

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7. USING TRACING PAPER , TRACE TRIANGLE OCD AND COLOUR IT IN SAME COLOUR AS TRIANGLE OCD

8. CUT THE TRACED TRIANGLE NEATLY

  • PLACE THE TRACED TRIANGLE OCD
  • ON TRIANGLE OAB AND MATCH ANGLE AOB AND ANGLE COD . WHAT DO YOU OBSERVE?
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Record and Report your Observations as Under

OBSERVATIONS

Radius of Circle = ________ CM

Length of AB= ___________ CM

Length of CD = ___________CM

Angle AOB= Angle _______

Angle COD= Angle_______