There are two pairs of congruent base angles in an isosceles trapezoid.
A trapezoid always has two acute angles. the base angles have to be acute because the lower base angles and the upper base angles are complementary so since the upper base angle is always obtuse, the lower base angles have to be acute.
It is a trapezoid in which the non-parallel sides are of the same length and subtend equal angles with the base. It can be viewed as an isosceles triangle whose apex has been removed by a line parallel to its base.
The pair of angles at the end of each parallel side - the two base angles and the two top angles - are congruent.
yes because a supplementary angle is two angles where the sum of the angles is 180 degrees.
Yes because that is one of the properties of a trapezoid
A trapezoid.
Base angles.
There are two pairs of congruent base angles in an isosceles trapezoid.
Yes, normally there are two of them.
A trapezoid always has two acute angles. the base angles have to be acute because the lower base angles and the upper base angles are complementary so since the upper base angle is always obtuse, the lower base angles have to be acute.
This is not a trapezoid. For all trapezoids (in plane Geometry), the two sets of side angles must be supplementary, or add to 180. No two angles given are supplementary.
It is a trapezoid in which the non-parallel sides are of the same length and subtend equal angles with the base. It can be viewed as an isosceles triangle whose apex has been removed by a line parallel to its base.
The pair of angles at the end of each parallel side - the two base angles and the two top angles - are congruent.
Two acute angles cannot be supplementary but they can be complementary
Supplementary angles are two angles which add up to 180°.
A trapezoid may have two right angles.