Question

To construct an isosceles triangle uniquely, the minimum number of measurements required is equal to

• A.
  1
• B.
  2
• C.
  3
• D.
  4

Answer 1

The correct option is B

2
In an isosceles triangle, two sides and two angles are equal. Thus, an isosceles triangle can be constructed uniquely either if the measures of two unequal sides are given or if the measures of base length and equal base angle are given.
This implies the minimum number of measurements required is 2.
Hence, the correct answer is option (b).