Geo Vocab 1
A line with one end point and the other side extending forever is called a _________.
A ray
Two angles that equal 90 degrees
Complementary Angles
An angle between 90 and 180 degrees
Obtuse
Two angles that equal 180 degrees
Supplementary Angles
A triangle that has no congruent sides
Scalene
A circle and a right angle has this many degrees
450 degrees!
What is true about two vertical angles
They are equal!!!
A multi-sided, closed, 2-D shape
Polygon
The measurement in degrees of an individual angle in an equilateral triangle
60 degrees
Add a decagon, a pentagon, and a hexagon together- how many sides would you have?
21 sides
A twelve-sided figure
Dodecagon
What is the complement of 55 degrees
35 degrees
A type of triangle with two congruent angles
Isosceles
Add the complement of 70 with the supplement of 160- what do you get?
40 degrees
A line that divides a shape creating identical shapes when folded together (SPELLING COUNTS!!!)
SYMMETRY
This quadrilateral has four congruent sides and two pairs of congruent angles
Rhombus
The supplement of 120 degrees
60 Degrees
This quadrilateral has two pairs of parallel sides and two pairs of congruent sides
Parallelogram
What is the interior sum of every quadrilateral minus the sum of every triangle
180 degrees
This quadrilateral has four 90 degree sides and four congruent angles
Square
This quadrilateral has only one pair of parallel sides
Trapezoid
What is true about the angles of a scalene triangle?
They are NEVER congruent since the sides of a scalene triangle are never congruent
This quadrilateral has four 90 degree angles and two pairs of congruent sides (Be Specific!)
Rectangle
Add the sides of a septagon, nonagon, and a quadrilateral
20 sides!!!
The _________ of all triangles is 180 degrees while the _________ of all quadrilaterals is 360 degrees (IT'S THE SAME ANSWER!)
Interior Sum