All Answers 358087 Answers

No, but I noticed it was missing, Did you report it?

Area of semi-circle =

(1/2) * pi * (radius)^2  =

(1/2) * pi * (3 )^2    =  [ ( 9/2) pi ] cm^2

Thanks Britney

How come they made my post invisible, instead of the guy who said that?

Did you report HSC's post? just curious.

edit: no, that is why i asked you

(-16)*(-7)= 112

This one is a little more difficult........

The length of one side = 90 / 15  =  6

The 15-gon will be comprised of 30 equal triangles.......the base  = side/ 2  = 6/2  = 3m

And the height will be given by :   3/ tan (12° )

So......the total area  =

30  (1/2) (3)  ( 3/ tan 12° )    ≈  635.1 m^2

Good job, NSS !!!!!!......looks like you're learning this stuff!!!

Area of semi-circle =

(1/2) * pi * (diameter / 2) ^2  =

(1/2) * 3.142  * (10/2) ^2  ≈  39.28 cm^2

6.53529411765

When someone declares that you have formed a baby.

a lot, an average of 20-30 per day, five days a week for the past 4-5 years and roughly 8-17 per day, five days a week before then

ask your parents