Original post by Fifty345
How would you do this?
Attachment not found
Just work out each area. What problem are you having?
Original post by mqb2766
Just work out each area. What problem are you having?
how would you work out the area for ABC? 1/2absincC?
Original post by Fifty345
how would you work out the area for ABC? 1/2absincC?
Sort of, angle CAB is easy so do the area sin calc using that
Original post by mqb2766
Sort of, angle CAB is easy so do the area sin calc using that
k.
(edited 3 years ago)
Original post by Fifty345
can you check if this is correct please?
for abc, angle a is 30 degrees because isosceles .You do 1/2absinC which is 1/2 x 10 x 10 x sin 30 = 25cm^2.
for ade, (10 + 12) x 5 and divide that by 2 = 55cm^2.
Ratio: 25:55
simplified to 1:2.2
for abc, angle a is 30 degrees because isosceles .You do 1/2absinC which is 1/2 x 10 x 10 x sin 30 = 25cm^2.
for ade, (10 + 12) x 5 and divide that by 2 = 55cm^2.
Ratio: 25:55
simplified to 1:2.2
Yes.
Original post by mqb2766
Yes.
thanks, appreciate your help.
Original post by Fifty345
thanks, appreciate your help.
There was a good reflection I was going to make about the answer, but as you've deleted the image/question, I'll leave it.
Original post by mqb2766
There was a good reflection I was going to make about the answer, but as you've deleted the image/question, I'll leave it.
Apologies, I would really like to know. I deleted it incase for copyright reasons. Would you want me to repost the image?
Original post by Fifty345
Apologies, I would really like to know. I deleted it incase for copyright reasons. Would you want me to repost the image?
There are several reasons why people delete the question, sometimes it's because it's homework etc. I doubt that you'd have a problem with copyright for a question snippet.
As you've done this on another thread as well and it looks to be an exam question, I'd appreciate knowing which one it is - preferably a link.
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