Chapter 8-Quadrilaterals Flashcards
1
Q
What is the polygon interior angles theorem?
A
The sum of the measures of the interior angles of a convex polygon is
Sum of angles=(n-2)180
2
Q
Polygon exterior angels theorem
A
The sum of the measures of the exterior angles is 360 degrees
3
Q
What is a parellogram
A
- Opposite sides are congruent
- Opposite angles are congruent
- Consecutive angles are supplementary
‘4. Diagonals bisect each other
4
Q
What is a rhombus?
A
Parellogram with 4 congruent sides
- Each diagonal bisects pair of opposite angles
5
Q
What is rectangle?
A
- Its diagonals are congruent
A parallelogram with 4 right angles
6
Q
What is a trapezoid?
A
- Each pair of base angles are congruent
- Diagonals are congruent
- Midsegment is parallel and is 1/2 the sum of both bases
7
Q
What is kite?
A
- Diagonals are perpendicular
2. 1 pair of opposite angles are congruent
8
Q
Which shapes diagonals are congruent?
A
Rectangles, squares, and isosceles trapezoids
9
Q
Which shapes diagonals are perpendicular?
A
Rhombus, square, kite
10
Q
What is a square?
A
A rhombus and a rectangle,
A parallelogram with 4 right angles and 4 congruent sides