Question

how do u find the area of part of a circle?

Answer 1

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

Answer 2

Be specific about the part of the circle

Answer 3

http://math.about.com/library/blmeasurement.htm

Answer 4

half of the circle and its diameter is 16

Answer 5

1/2 pi(diameter/2)^2

Answer 6

Find the area of the circle (pi x r x r) r = 8 as it is half a diameter
so in your calcu;ator press, pi * 64 then divide by 2

Answer 7

1/2pi*64=32pi

Answer 8

pi is the button that looks like mini stonehenge:)

Answer 9

what if it gives u like a pizza slice size or a quarter

Answer 10

mean any sector of the circle?

Answer 11

yes

Answer 12

Well you will need to know the angle at the centre. This is then a ratio to 360 degrees which is then multiplied by pi r squared

Answer 13

area of a sector =1/2r^2*central angle

Answer 14

the measure of the angle is 45

Answer 15

angle is theta (we use this for any unknown angle)/ 360 multiplied by pi r squared.

Answer 16

45/360 * pi r*-r

Answer 17

pi r squared that should say

Answer 18

gian...there isnt pi in the area of sector

Answer 19

thanks u

Answer 20

uzma there is pi in a whole circle and a sector is a fraction part of a circle

Answer 21

http://math.about.com/od/formulas/ss/surfaceareavol_7.htm

Answer 22

Uz look at the formula on the page you just posted.

Answer 23

so?

Answer 24

the one that says degrees

Answer 25

oh u r using that one :) i talked about the radian measure:

Answer 26

No problem good talking to you!

Answer 27

i ahve anpother question can u guys help me

Answer 28

post it

Answer 29

Softball, best to post it so all can see it on left of screen ask a question

Answer 30

kk find the area of a rhombus with a perimeter of 40 and an angle of 60

Answer 31

I will post a detailed jpeg for yoy.

Answer 32

okk

Answer 33

where is it

Answer 34

Is that clear? I am assuming you have been taught this method of finding the area of a triangle