How many degrees is a straight angle?
180 degrees
How many sides does a quadrilateral have?
4
What makes a triangle equilateral?
all sides are equal in length
What type of angle is this angle?
Obtuse
Draw a right triangle.
drawings will vary.
What is a ray?
Drawings will vary.
What is the rule for acute angles?
Less than 90 degrees
What is this triangle called?
Equilateral Triangle
True or False: A square has to have all right angles
What is the geometric term for lines that cross each other.
intersecting lines
A line with two endpoints.
Line Segment
What is the difference between parallel lines and perpendicular lines?
Parallel lines never intersect, perpendicular lines intersect at a 90 degree angle.
What is the rule for obtuse angles?
More than 90 degrees
What type of angle is 90 degrees?
right angle
What is a triangle classified as when it has 2 sides of equal length?
Parallel lines cross at a 90 degree angle - True or False?
False
Two trains leave the subway station in opposite directions. What type of lines are they creating?
Parallel Lines
Draw an obtuse, acute, and right angle and label them
answers will vary
Draw an equilateral, obtuse triangle
answers will vary
A square has one side that is 12 cm long. What is the AREA of the square?
144 square cm
Which is not an attribute of a rectangle?
opposite sides are parallel
opposite sides are equal in length
all sides are equal in length
all angles are right angles
all sides are equal in length
What are line segments that intersect at an angle of 90 degrees
Perpendicular lines
Describe an acute scalene triangle
A triangle with no equal sides and three acute angles
How many pairs of parallel lines does a trapezoid have?
one
Can a triangle have 2 angles larger than 90? Why?
No, because then the sum of all angles would be larger than 180.
The sum of 2 angles is 115. One of my angles is 94, what is the other angle?
21 degrees
An angle has two parts, one is 37 degrees and the other is 46 degrees. How many degrees is the angle? What type of angle is this?
83 degrees
acute
Describe a scalene, right triangle
a triangle with no equal sides and one right angle
What do squares and rectangles have in common?
Parallel lines, perpendicular lines, 4 right angles
What is the formula for area?
What is the formula for perimeter?
length times width
l+l+w+w or 2(l+w)