A japanese fan can be made by sliding open its 7 small sections which are each in the form of sectors of a circle having central angle of 15 if the radius of this fan is 24 cm. find the length of the lace that is required to cover its entire boundary.
Answers
Answered by
4
Answer:
528 cm^2
Step-by-step explanation:
Central angle = ∅ = 15°
radius = 24 cm.
Area of the sector = ∅/360° * πr²
=> 15/360 * (22/7) * (24)²
=> 528/7 cm²
It can be made by sliding open its 7 small sections.
=> 7 * (528/7)
=> 528 cm²
Length of the lace = 528 cm².
#Hope my answer helped you!
Answered by
0
Answer:
528cm^2
Step-by-step explanation:
Area of sector = theta/360*pi*r^2
=15/360*22/7*24*24
=1/24*22/7*24*24
=22/7*24
=528/7cm^2
Area of fan = 7*area of sector
=7*528/7
=528cm^2
☺
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