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Because its base angles are equal and the 4 interior angles of any quadrilateral add up to 360 degrees so in this case opposite angles must add up to 180 degrees

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Does an isosceles trapezoid have a right angle?

no


Is there an isosceles trapezoid have at least one right angle?

Yes, an isosceles trapezoid can have at least one right angle. In such a trapezoid, the non-parallel sides are equal in length, and if one of the angles between a base and a non-parallel side is a right angle, the trapezoid will still maintain its isosceles properties. This configuration results in a trapezoid that is both isosceles and contains a right angle.


If this figure is an isosceles trapezoid what is the measure of angle DAB?

There is no figure to be seen but an isosceles trapezoid will have equal base angles.


What is half of an isosceles triangle?

Depending how you halve it can be a right angle triangle or an isosceles trapezoid


What is the total interior angle of an isosceles trapezoid?

The 4 interior angles of any trapezoid, including those that are isosceles, always add up to 360 degrees


What trapezoid can be subdivided into four congruent right triangles?

An isosceles trapezoid can be subdivided into 4 right angle triangles.


What is the value of x on a isococeles trapezoid?

What is 'isococeles'? Do you mean 'Isosceles'. If so , then you need to specify 'x' , be it an angle or a side length.


If a trapezoid has a one hundred degree angle and a sixty-five degree angle and a seventy-five degree angle what is the measure of the fourth angle?

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.


Ef is a median of isosceles trapezoid abcd if angle d equals 50 degrees what is the measure of angle ad?

The isosceles trapezoid will have 2 equal base angles of 50 degrees and 2 other equal angles of 130 degrees.


Ef is a median of isosceles trapezoid abcd if angle d equals 50 degrees what is the measure of angle efb?

50


What is the area of an isosceles trapezoid has bases of 4 and 10 If the base angle is 45 degrees?

42


Is it true a trapezoid has both pairs of opposite angle that are congruent?

No only if its in the form of an isosceles trapezoid then its base angles will be the same but opposite angles are normally different.