A and R are both correct, and R is the correct explanation of A.
The side |AB| = |AC| implies that the base angles and sides of the triangle are equal and this can be seen in an isosceles triangle.
Given that:
It is said that:
We can see that the reason provided goes in line with the set rules for an isosceles triangle.
Therefore, we can conclude that the assertion A and reason R is both correct, and R is the correct explanation of A.
Learn more about an isosceles triangle here:
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