quiz Flashcards
what is a triangle?
a triangle is a closed figure in a plane consisting of three segments called sides.
how do we name triangle ?
a triangle is named using the capital letters assigned to its vertices in a clockwise or counterclockwise direction.
so basically its named using its vertices,
what is a scalene triangle?
a triangle with no congruent sides or angles
what is an isosceles angle?
two sides are congruent and two angles that are congruent.
what are base angles in an isosceles?
the two angles that are congruent.
what is an acute angle?
an angle where all three angles are acute.
what is an equilateral angle?
all three sides and angles are congruent.
what is a right triangle?
-only one angle is a right angle.
- the other two are acute angles.
-the two acute angles are complementary
what is an obtuse triangles?
only one angle is an obtuse angle
what is the triangle angle sum theorem?
m<A=m<B+m<C=180
what is the exterior angle theorem?
m<1=m<A+m<B