Is B equal to C in this geometry problem? I just need to know, that and then I can solve the rest.

In the right angled triangle ACD shown with isosceles triangle ABC and ADC, AB = AC = AD
An equation is an expression that shows the relationship between two or more numbers and variables.
A triangle is a polygon that has three sides and three angles. Types of triangles are isosceles, equilateral and scalene.
In the diagram shown:
AB = AC = AD
In the right angled triangle ACD shown with isosceles triangle ABC and ADC, AB = AC = AD
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