Question

HELP!! Will give medal!

Answer 1

how do i solve 3A?

Answer 2

arc AB is 100 degrees. The Circle is 360 degrees. It looks like the radius of the circle is 5.

Answer 3

alright, thank you!! :)

Answer 4

sorry, but do you know how to do 3B??

Answer 5

The arc length will be a fraction of the circumference of the circle.

Answer 6

mhm

Answer 7

Similarly, the Area of the Sector will be a fraction of the Area of the Circle

Answer 8

the area of the entire circle is 78.54

Answer 9

Great. So what fraction of the circle is the arc?

Answer 10

100

Answer 11

That's not a fraction. That is the number of degrees in the arc.

Answer 12

hm how would i find the fraction?

Answer 13

How many degrees are in a circle?

Answer 14

360

Answer 15

Any way to build a fraction out of those two numbers?

Answer 16

360 and which number

Answer 17

If your circle was made up of 360 super-thin slices of pizza, how many pieces of pizza would be in your sector?

Answer 18

i dont follow :(

Answer 19

What is a degree measuring?

Answer 20

when you find the measure of opening of a sector

Answer 21

If I had cut my pizza into four pieces, how many degrees would the arc of each pizza have?

Answer 22

90

Answer 23

Okay, and in this case instead we start by knowing that arc AB is 100 degrees.

Answer 24

So we have more than 1/4 of the pizza.

Answer 25

yes

Answer 26

How much of the pizza do we have (as a fraction)?

Answer 27

i dont know to find the fraction, how would i count it

Answer 28

How about we imagine 36 slices of pizza, each with 10 degree arcs.

Answer 29

okay

Answer 30

So how many slices in our sector?

Answer 31

10

Answer 32

yes?

Answer 33

Yes. So 10 slices in our sector out of how many slices total again?

Answer 34

10 out of 36

Answer 35

Yes. That is our fraction. The same as 100/360.

Answer 36

oh okay! so the area needs to be divided by 10 then

Answer 37

Not exactly. The area needs to be multiplied by our fraction.

Answer 38

If I have 40 acres and I give each of my 4 kids 1/4 of my land, they each have 40*(1/4) = 10 acres of land.

Answer 39

21.8

Answer 40

21.8 would be the area of ab

Answer 41

Sounds good to me

Answer 42

thank you for explaining everything to me i appreciate it :-)

Answer 43

Sure thing. Good job sticking through it. Always pays off to keep going.