Problem
GEO-B1-M02-P003 The Vertex Angle
#3
★☆☆☆☆ Level 1 of 5
In isosceles triangle \(ABC\), \(AB=AC\), and \(\angle A=52^\circ\). Find angles \(B\) and \(C\).
The base angles of an isosceles triangle are equal.
Since \(AB=AC\), we have \(\angle B=\angle C\). Their sum is \(180^\circ-52^\circ=128^\circ\). Therefore \(\angle B=\angle C=64^\circ\).
A simple link between equal sides and equal angles.