Hi, can you help me please? :)
I'm going to assume that A is the center of the circle.
AC = AB since they're both the radius.
AD + EC = AB
Can you figure it out from here?
=^._.^=
Hi, wouldn't AD = AB as well?
I think you got confused catmg ???
Oopsies, my bad.
AC = AE + EC, not AD + EC.
I'm sorry if I got you confused.
YES
AB = AC = AD all radii.
I assume AE=7.5cm
radius = 7.5+5=12.5cm
Use pythagoras's theorum to find ED
then area of a triangle formula
oh yes, this helps Melody. Thanks!
Area of ΔABD = AE [sqrt(AD2 - AE2)] (AD = AC)
+2401 
