Question

The image below is a triangle drawn inside a circle with center O:

A triangle is shown inscribed inside a circle. The leg of the triangle labeled 4 inches passes through the center of the circle, O. The other two legs are labeled as 2 inches and 3 inches.

Which of the following expressions shows the area, in square inches, of the circle?

(π = 3.14)
3.14 ⋅ 2
3.14 ⋅ 3
3.14 ⋅ 22
2 ⋅ 3.14 ⋅ 22

Answer 1

@amistre64

Answer 2

@amistre64 can you please help me i give medal !?

Answer 3

@Loser66 !!!!!

Answer 4

I wish I can help if I remember the formula to find area of a circle. Do you remember?

Answer 5

no lol @Loser66

Answer 6

I need help im so confused !!!!!!!

Answer 7

@amistre64 ?

Answer 8

If you dont know how to find the area of a circle, then you need to review your course material.

Answer 9

um i did and the reason i came on here is for you people to atleast ehlp me understand it . ? @amistre64

Answer 10

Do you remember the formula? You answered, No

Not: I did, not, here it is, nothing. just No.

So, how do we calculate the area of a circle? post your thoughts, and then we can proceed.

Answer 11

ugh

Answer 12

goodness i hate math.

Answer 13

this isnt math, its just a formula. formulas are memory stuff, not math perse.

and there is something off in your option, that i agree.

Answer 14

area equals pie r2

Answer 15

oh good, my brain was set on circumference ... i would have gotten it wrong by a simple mistake.

Answer 16

pi r^2

what is our radius?

Answer 17

2

Answer 18

half of 4 yes.

so pi 22 assuming your paste ate the exponent marker.

and now, this is why you finding the formula was important, I was considering using 2 pi r instead - which was wrong in my head.

Answer 19

so the answer is 3.14 * 2 square

Answer 20

yep

Answer 21

i need help with another question

Answer 22

we both might lol, what is it?

Answer 23

Jamie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randomly from the deck, records its type, and replaces it in the deck. Jamie has already recorded six baseball cards and nine football cards. Based on these data, what is, most likely, the number of baseball cards in the deck?
12
15
24
30

Answer 24

@amistre64

Answer 25

what is our current ratio?

Answer 26

what do you mean ?

Answer 27

oh 15

Answer 28

a ratio is the number of items in one set, compared to the number of items in a different set.

say I have 3 apples and 2 oranges, the current ratio of apple to oranges is: 3:2

Answer 29

i feel so stupid even though i have a a in math lol

Answer 30

15 is required

6 of one, 9 of the other, and 15 total

6 :9 :15 now the ratio stays consistent for any multiple, say k

6k :9k :15k

we want the value of 6k

we know that 15k = 60, since we have a total of 60 cards in the entire deck

what should the value of k be?

Answer 31

4

Answer 32

correct, so 6*4 is our solution

Answer 33

24

Answer 34

very good

Answer 35

thank you

Answer 36

good luck :)

Answer 37

@mathmate