The diagonals of an isosceles trapezoid are congruent.
True
False
Cannot be Determined
In a parallelogram, the opposite angles are congruent.
True
False
Cannot be Determined
In a parallelogram, the consecutive (adjacent) angles are congruent.
True
False
Cannot be Determined
The diagonals of a rectangle are perpendicular.
True
False
Cannot be Determined
The diagonals of a rhombus are perpendicular.
Always true
Sometimes true
Never true
The diagonals of a trapezoid are congruent.
Always true
Sometimes true
Never true
Each property matches one quadrilateral. Match the property with the most general quadrilateral that it satisfies. By "most general", this means highest quadrilateral on the hierarchy that satisfies the condition.
Rhombus
A quadrilateral with opposite angles congruent.
Rectangle
A parallelogram with diagonals that are congruent, perpendicular, and bisected.
Square
An equilateral quadrilateral.
Parallelogram
An equiangular quadrilateral.
The sum of the measures of the interiorangles of a decagon is __________ degrees.
1,800°
1,440°
144°
In a regular decagon, each interior angle has measure _________ degrees.
144°
140°
135°
The sum of the measures of the exteriorangles of a decagon is __________ degrees.
180°
360°
1,440°
In a regular decagon, each exterior angle has measure _________ degrees.
180°
144°
36°
If the measure of one exterior angle of a regular polygon is 24 degrees, then the polygon has _______ sides.