6. How much distance will be covered by an ant in travelling once around the given figure?
2.8 cm
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Given : Two figures
To find : distance will be covered by an ant in travelling once around the given figure
Solution:
Fig 1 :
Diameter = 2.8 cm
=> radius = 2.8/2 = 1.4 cm
Distance covered = Semi circle perimeter + Diameter
Semi circle perimeter= (1/2)2πr = πr
= (22/7)1.4 + 2.8
= 4.4 + 2.8
= 7.2 cm
Fig 2 :
1.5 + 2.8 + 1.5 + 4.4
= 10. 2 cm
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