Angles
An angle that is less than 90 degrees
what is an acute angle
I am an equilateral triangle, one of my angles read 60 degrees, what do the others read
they are also 60 degrees
Adjacent angles always add up to be
180 degrees
A triangle that has all the same lengths and angles
what is an equilateral triangle
how many degrees in a right angle
90 degrees
I am 120 degrees, what angle am I
Obtuse angle
I have the angles 69 degrees and 31 degrees, what is the missing angle
80 degrees
Complementary angles always add up to be
90 degrees
A triangle with all different lengths and angles
what is a scalene triangle
what are the angles in square
they are all 90 degrees
Adjacent angles
The exterior angle reads 299 degrees, what does the interior angle read
61 degrees
If angle A and C are complementary and angle C is 35 degrees, what is the measurement of angle A
55 degrees
A triangle with 2 of the same lengths
what is an isosceles triangle
Vertical angles are always ________.
Congruent
I am an angle that's over 180 degrees
what is a reflex angle
I have 2 interior angles as 69 and 140 degrees, what are the exterior angles for them
291 and 220 degrees
if angle A and angle B are adjacent, and angle A is 60 degrees, what is the measurement of angle B
120 degrees
is it possible to have 2 right angles in a triangle?
no
This shape has 4 right angles but only opposite sides are congruent, what am I
a rectangle
sometimes
If I have 2 adjacent and one is 90 degrees, what is the measurement of the the other angle
also 90 degrees (adjacent angles need to add up to 180 degrees)
Adjacent angles are also ________ angles
supplementary
I have a base length of 8cm and 2 side lengths of 3cm, I am I a proper triangle?
No, (the sides are too short for the long base; they never touch, therefore I am not a triangle but, an open shape)
the type of lines that form a right angle
perpendicular lines