Circumference of a circle is 22cm find the area of its quadrant

Hey!

So the area of a quadrant in this circle would be 9.62cm^2

Step-by-step explanation:

To find the radius of the circle from the Circumference...

r=C /   2π *22 / 2π*

This gives us... 3.5 cm

We now use this to find the total area of the whole circle...

A = π x r^2 (radius squared)

This gives us 38.48 cm^2...

To find a quadrant we have to divide this answer by 4...

38.48 / 4...

GIVES US AN ANSWER OF 9.62cm^2!

HOPE THIS HELPS!!

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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