If two angles of a triangle are 43 and 81, find the measurement of the third angle.
56
100
If the disgonals of a parallelogram are congruent, then the parallelogram will be a _________
rectangle
100
Classify a triangle with sides of legths 8", 5", and 5".
isosceles
100
Two angles whose sum equals 180 degrees are called ___________ ________
supplementary angles
100
In a right triangle, the sum of the two acute angles is ______
90 degrees
200
If the vertex angle of an isoscele triangle is 46, the measurement of each base angle is _______
67
200
The sum of the exterior angles of any convex polygon is _______
360 degrees
200
The sum of the interior angles of any convex polygon is ___________
(n-2)(180)
200
A trapezoid in which the legs are congruent is called ___________ ____________
an isosceles trapezoid
200
Angles that have the same measurement are called ___________ _______
congruent angles
300
The sum of the exterior angles of any triangle is ______
360
300
In a rhombus, the diagonals _________ each other and are ________ to each other.
bisect; perpendicular
300
Angle A and angle B are vertical angles. If angle A = 3x and angle B = 2x+9, then the measurement of angle A = _______
27 degrees
300
A polygon which is equilateral and equiangular is called __________
regular
300
What is the sum of the interior angles of a dodecagon?
1800 degrees
400
If one interior angle is 65 and one exterior angle is 120, find the measure of the smallest interior angle.
55
400
If the measurement of one pair of base angles of an isosceles trapezoid is 80 degrees, then the measurement of the other pair of base angles is _______
100 degrees
400
The shortest distance between two points is a ________ ________
straight line
400
Two non-coplanar lines are called ___________ lines.
skew
400
In pentagon ABCDE, four of the interior angles have a measurement of 122, 103, 98, and 99. Find the measurement of the fifth angle.
118 degrees
500
The measurement of each angle in an equiangular triangle is _______
60
500
In trapezoid ABCD, AB || CD, and CD = 4.25 inches. The median (midsegment) of the trapezoid is 2.75 inches. Find AB.
1.25 inches
500
In parallelogram ABCD, AB is 3 inches shorter than BC. The perimeter of parallelogram ABCD is 42 inches. Find AB and BC.
AB = 9; BC = 12
500
A comparison of two or more numbers is written as a _________
ratio
500
The sum of the measures of the interior angles of a convex regular polygon is 1080 degrees.
Classify the polygon by the number of sides.