Question

which of the following has congruent base angles?
a all kites
b all isosceles trapezoids
c all quadrilaterals
d all trapezoids

Explanation:

An isosceles trapezoid has the property that its base angles are congruent. A kite has two pairs of adjacent sides equal but not all base angles congruent. A quadrilateral is a general four - sided figure with no such angle property. A trapezoid (non - isosceles) has no guarantee of congruent base angles. So, by the definition and properties of these geometric shapes, only all isosceles trapezoids have congruent base angles.

Answer:

B. all isosceles trapezoids