Question

Geometry questions? Please help!

Answer 1

cant see the pic

Answer 2

Calculate the length of arc DE.

Answer 3

(72/360)(2pi15)

Answer 4

(.2)(94.24)=18.849555

Answer 5

http://math.about.com/od/formulas/ss/surfaceareavol_9.htm

Answer 6

so would that be 6 pi?

Answer 7

u want it in terms of pi?

Answer 8

yeah!

Answer 9

yea its 6 pi

Answer 10

okay! how about the circumference of point Q in terms of pi?

Answer 11

circum= 2 pi r

Answer 12

so if the radius is 15 the diameter is 30

Answer 13

so 30pi

Answer 14

anything else?

Answer 15

oh okay! can i ask another question? sorry this section of math is confusing me!

Answer 16

Approximate the are of the circle segment bounded by line DE and arc DE

Answer 17

I know you have to use trig...

Answer 18

no actually im fine with trig im in ap calc this yr :P

Answer 19

haha okay. so how do you do that one?

Answer 20

tbh i have no idea how it wants me to do this using the arc

Answer 21

but i can find the area using the radius if u want?

Answer 22

the area of point Q? in terms of pi...

Answer 23

yea the area of a circle is pi r^2

Answer 24

so it would be 15^2pi

Answer 25

225pi

Answer 26

sry i was just confused by the bound by the line segment n arc DE

Answer 27

r u in geometry?

Answer 28

okay last question! this one is tricky... calculate the area of the sector bounded by line DQ, line EQ, and arc DE. in terms of pi?

Answer 29

so the area of the triangle?

Answer 30

Ohhh yeah!!!

Answer 31

and no, i'm actually in AP stats but my sister is in geometry and I cant remember how to do any of this stuff for life of me...

Answer 32

o haha yea geo gets confusing