A and R are both correct, and R is the correct explanation of A.
In an isosceles triangle ΔABC;
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:
- A = a statement of assertion
- R = reason
It is said that:
- Assertion (A): In ΔABC, AB = AC: if ∠B = 50°, then ∠C = 50°.
- Reason (R): Angles opposite to equal sides of a triangle are equal.
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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