CHOOSE THE PROPER WORD
Base angles are CONGRUENT/SIMILAR.
The sum of the measures of any two SIDES/ANGLES in triangle is greater than the measure of the third SIDE/ANGLE.
The longest side of a triangle is ADJACENT/OPPOSITE to the largest angle.
A MEDIAN/ALTITUDE goes through a vertex of triangle and midpoint of the opposite side.
FILL IN THE GAPS
Measures of the three exterior angles in triangle add up to .................... .
If two altitudes of triangle are congruent then the triangle is ................... .
LABEL TRUE OR FALSE
All medians in triangle are concurrent. (T/F)
In triangle the angles opposite the congruent sides are congruent. (T/F)
Angle bisectors divide each other in the ratio 2 : 1. (T/F)
The measure of an exterior angle of a triangle is equal to the sum of the measures of the remote interior angles. (T/F)
Say, if the sentence is true always/ sometimes/ never.
The acute angles of a right - angled triangle are complementary.
A triangle contains two obtuse angles.
The median to a side of triangle divides the triangle into two congruent triangles.
If the sides of a triangle are doubled, each angle of a new triangle is twice as large as the corresponding angle of the first triangle.