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Line 346:
Line 346: − # The value 3.14 is the value of pi which is constant.+ Line 361:
Line 361: −
→Activity No # 1 Derivation of formula for circumference and the value for pi.
# Round C/d to two decimal places.
# Round C/d to two decimal places.
# Observe the answers in each case. It would be aprroximately 3.14 .
# Observe the answers in each case. It would be aprroximately 3.14 .
# The value 3.14 is the value of pi which is constant.
C/d = п or C = п d or C = 2п r.
C/d = п or C = п d or C = 2п r.
*Developmental Questions:
*Developmental Questions:
# What is the name of that constant ?
# What is the name of that constant ?
# Try to collect more information on Pi.
# Try to collect more information on Pi.
==Concept # 4 Finding the area of a circle.==
==Concept # 4 Finding the area of a circle.==