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if a polygon has 'n' sides and S is the sum of the measures of it's interior angles.
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
in a parallelogram labeled ABCD, A+ B=180, B+C=180, C+D=180, and
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
the ____________ of a parallelogram bisect each other
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
consecutive angles in a parallelogram are supplementary
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
the diagonal of a parallelogram separates the parallelogram into ____ congruent triangles
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
_____________ angles in a parallelogram are congruent
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
if a parallelogram has one ________ angle, it has four right angles
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
exterior angle sum theorem
right
theorem 8:1
D+A=180
theorem 8:5
diagonals
two
opposite
if a polygon is convex, then the sum of the measure of the exterior angles with one at each vertex
Check it!