Posted by Ellie on Saturday, March 16, 2013 at 8:02pm.
The heart shaped card is made by placing a square card and two semicircles together. What is the area of the card.
each side of the sqare is 8cm long.
I did a=TTr(squared)+lw
The total area of the card is
Can you please let me know if I did this correctly? Thanks
- Math - bobpursley, Saturday, March 16, 2013 at 8:24pm
How did you get from
area=PI*16 +64 which is 114, to 251 then 257?
- Math - Ellie, Saturday, March 16, 2013 at 8:49pm
1st I added 16 plus 64=80. Then I multiplied 80 by TT and got 251.3
The last part should be 251.3 I messed up on the last number.
so is 251.3 correct?
Thank you for checking my work, I appreciate it.
- Math - Ellie, Saturday, March 16, 2013 at 9:39pm
I see what you did, but I thought TT was always done last, so I added and then multiplied TT.
Is there an order of operation for Pi?
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