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you can take a picture of the rectangle from your book and attach it as a file here
Okay, AB is 3 cm, And x or DE is 45 cm.
so if AB is 3 cm, what is the length of DC?
are you thinking about it?
dc is 3
and i don't think de is 45 cm
In the figure above, E is the midpoint of side CB of rectangle ABCD, and ∠x = 45°. If AB is 3 centimeters, what is the area of rectangle ABCD, in square centimeters?
I see x is the angle ade
okay, angle ADE is 45, what is the angle CDE?
i think DC IS 3 and CE is also 3
okay good. I hope you got that tan 45 = CE/DC
alright. So if CE is 3 cm and E is the midpoint of CB, what is the length of CB?
great! so what is the area of the rectangle?
yes, you should say 18 sq.cm though, because length and breadth are in cms.
thank you very much
you are welcome.