Question

match the vocabulary word with the correct definition.

1. base angles
2. median of a triangle
3. base of an isosceles triangle
4. vertex angle
5. altitude of a triangle

the angle formed by the two equal
sides of an isosceles triangle.
the third, unequal side of an
isosceles triangle.
a segment from a vertex to the
midpoint of the opposite side.
a segment from a vertex
perpendicular to the opposite side.
the two angles that include the
base of an isosceles triangle.

Explanation:

• Base angles: In an isosceles triangle, the base angles are the two angles that include the base.
• Median of a triangle: A median of a triangle is a segment from a vertex to the midpoint of the opposite side.
• Base of an isosceles triangle: The base of an isosceles triangle is the third, unequal side.
• Vertex angle: The vertex angle is the angle formed by the two equal sides of an isosceles triangle.
• Altitude of a triangle: An altitude of a triangle is a segment from a vertex perpendicular to the opposite side.

Answer:

1. The two angles that include the base of an isosceles triangle.
2. A segment from a vertex to the midpoint of the opposite side.
3. The third, unequal side of an isosceles triangle.
4. The angle formed by the two equal sides of an isosceles triangle.
5. A segment from a vertex perpendicular to the opposite side.