Question

there are seven round table at a party the radius of each table is 20 cm how much long Ribbon is required to cover this 7 table

Answer 1

radius = 20 cm
area of circle
= pie r ^2
= 22/7 × 20 × 20
= 125.7 cm^2

for 7 tables
= 125.7 × 7
= 879.9 cm^2

Answer 2

• No. of round tables=7
• Radius of each table=20cm
• Ribbon required for 1 table= C=2πR =2×22/7×20 =125.7
• Ribbon required for 7 table =125.7×7=880cm