Angles of Polygons
What is the sum of the exterior angles of a polygon?
360°
What is the definition of a parallelogram?
A quadrilateral with 2 sets of opposite sides that are parallel.
What do consecutive angles in a rhombus add up to?
180°
What is the difference between an isosceles and a non-isosceles trapezoid?
The non-parallel sides of an isosceles trapezoid are congruent, while non-isosceles trapezoids do not require any congruent sides.
Which former U.S. President attended Choate?
JFK
What is the sum of the measures of the interior angles in an 18-gon?
2,880°
Slide 3
21
Suppose rhombus JKLM has a perimeter of 48. What is the length of JK?
12
DEFG is an isosceles trapezoid. What is DF congruent to?
GE
Where does Ms. Hogan go to college?
University of Maryland
What is the measure of each interior angle in a regular decagon?
144°
Slide 2
126°
Slide 4
sqrt(578) = 24.04
JKLM is a kite. If the measure of angle J is 68°, what is the measure of angle L?
68°
How many points did the interns win the Intern vs. Faculty basketball game by?
3
The sum of the interior angles of a polygon is 2,160°. How many sides does the polygon have?
14
Do the following four points form a parallelogram? Why or why not? Use the distance formula.
P(-4, 2)
Q(6, 4)
R(11,-2)
S(2,-3)
No, only one set of congruent lines.
Slide 5
6
Slide 7
8
What year was Choate founded?
1890
Slide 1
79°
Do the following four points form a parallelogram? Why or why not? Use the slope formula.
K(2, 7)
L(6, 12)
M(13, 13)
N(9, 8)
Yes, both sets of opposite lines have the same slope.
Slide 6
52°
Slide 8
107°
What are the names of Mrs. Pierce's kids?
Kenzie and Cooper