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Math

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A dart board has a diameter of 40cm and is divided into 20 congruent sectors. What is the are of one of the sectors??

A. 10n cm²
B. 20n cm²
C. 40n cm²
D. 80n cm²

Sagot :

Jennielay346go Jennielay346go

Answer:

B. 20n cm²

Sana makatulong

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Joehumpreypedres2007go Joehumpreypedres2007go

Answer:

B.n cM2

Step-by-step explanation:

a=pi r2

=pi(40cm/2)2

=pi(20cm)2

=pi 400cm2

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