Question

A porch has the shape of a semicircle with a diameter of 7 ft.

What is the approximate area of the porch, rounded to the nearest square foot? Use 3.14 to approximate pi.

I THINK IT IS 38, DOES ANYONE ELSE AGREE I WILL GIVE MEDAL IF EXPLAINED PROPERLY

Answer 1

@mathmath333

Answer 2

I was right on the last one right??

Answer 3

yes

Answer 4

on this one i am 99.9% percent sure it is 38

Answer 5

thx

Answer 6

do u agree

Answer 7

you see, it was really 38.465, but it says estimate, so it is 38

Answer 8

is that rounded to the nearest square foot?

Answer 9

@SolomonZelman @sleepyhead314 @pooja195 @PlanSlam @kirbykirby @KJ4UTS @kmachelle @preteenpony @LittleRedRiding @AwesomeSays3! @witchp @EclipsedStar @xX_GamerGirl_Xx @Zyi6

Answer 10

@mathmath333 , how do i round to the nearest square foot

Answer 11

and everyone else

Answer 12

38 is wrong answer

Answer 13

oohh

Answer 14

how, what is it then, and how is it that answer

Answer 15

plz explain

Answer 16

area of semicircle=\(\Large \frac{1}{2}\times \pi\times r^2\)

Answer 17

You forgot to divide by 2

Answer 18

I got 642456.4658, and I think that might be a little of XD

Answer 19

okay...

Answer 20

3.5 for semi circle

Answer 21

so is it 1/2 times 3.14 times 3.5 2??

Answer 22

the 2 is small

Answer 23

but the half of what??

Answer 24

@mathmath333 , might you plz help

Answer 25

@bohotness

Answer 26

@BlakeCothran

Answer 27

calculate again
\(\large =\frac{1}{2}\times 3.14\times \frac{7}{2}^2\)

\(radius =\dfrac{diameter}{2}\)

Answer 28

You're on the right track so far

Answer 29

@mathmath333 , is'nt it 38.465/2

Answer 30

yes it is

Answer 31

that is 19

Answer 32

yes correct

Answer 33

but how do i round it to the nearest half square

Answer 34

foot

Answer 35

or is it already the answer, which is 19

Answer 36

include upto two decimal places

Answer 37

what?

Answer 38

the answer only alows me to have 3 spaces

Answer 39

exactly

Answer 40

you need to decimal spaces in order to round

Answer 41

two*

Answer 42

ok then include only one digit after decimal

Answer 43

if i do that then it is 19.

Answer 44

when you round your two decimal spaces you can include one decimal

Answer 45

it question will not let me input anymore, thats what my teacher said, only 3 digits

Answer 46

ok, i am just gonna say 19