Question

what are the formulas to find:

area
circumference
and to find the area of an irregular shape

i'm awarding a medal to the first to answer

Answer 1

Area of a circle = pi*r*r
Circumference of a circle = 2*pi*r

"... to find the area of an irregular shape..."
We use integration :)

Answer 2

so if the radius is 23 for both of them what is the answer?

Answer 3

Try to plug-in the values and find the answer yourself :)

Answer 4

I did they both came out as 144.44 the I rounded it to 144.4 is that right?

Answer 5

or area to be 1661.06

Answer 6

area = 1661.902514
circumference = 144.5132621

Answer 7

now rounded?

Answer 8

can you help me with the irregular fiqure

Answer 9

I simply used Excel XD
are you going to use the concept of significant figures here??

Answer 10

Upload your irregular figure..

Answer 11

k

Answer 12

it wont let me upload but its a half circle underneath a triangle so like this
C>
and there is a straight line going through the triangle stopping b4 the circle which is 4.8 ft long
then the half circle is 3.6ft wide

Answer 13

is that tooo confusing im sorry lol :(

Answer 14

Take a snapshot and upload the image..Its hard to answer this way..

Answer 15

r u still there lastdaywork ?

Answer 16

ihave to find the area

Answer 17

To call people, use @ before their names..like @Hahanopers12321

Answer 18

ok

Answer 19

Can you find the area of the triangle ??

Answer 20

isn't it the number x pi?

Answer 21

@lastdaywork

Answer 22

like 4.8 x 3.14

Answer 23

Area of triangle = (1/2) * base * height
Here base = 3.6
Height = 4.8

& please don't call me when I am already here :P

Answer 24

what 1/2 ? sorry I am dumb

Answer 25

so just 4.8 x 3.6

Answer 26

and thats the area?

Answer 27

Area of triangle = (base * height)/2
Does that makes sense ^^

& dont be sorry, we are all dumb..in a way XD

Answer 28

Total area = area of triangle + area of semi circle

Answer 29

thanks a lot

Answer 30

:)