M
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100
Angles that are less than 90 degrees
Acute
100
Define Line
No starting or end point
100
The little box in the corner of a triangle or any figure represents what?
A right angle
100
Line segment
a part of a straight line that is bounded by two distinct end points
100
If one angle of a right triangle is 25 degrees, what is the remaining angle measurement?
What is 65 degrees
200
Angles that are equal to 180 degrees
Straight angles
200
Triangles that have all equal sides
Equilateral triangles
200
What is Protractor
To measure angle
200
The instrument used to measure the length of a line
Ruler
200
True or false: the area of a trapezoid equals the area of a parallelogram
False. Area of parallelogram = bh, while the Area of a trapezoid = (b1 + b2)*h/2
300
Angles that are equal to 90 degrees
Right angles
300
Triangles that have two equal sides
isosceles triangles
300
How many angles are in a triangle?
3
300
What is the missing angle if a triangle has the following angles: 35 degrees and 65 degrees.
80 degrees!
300
What is the measurement of angle x?
55 + x = 90 (it's a right triangle), so x = 35 degrees
400
Angles that are greater than 90 degrees but less than 180 degrees
Obtuse angles
400
vertex
Edge , corner or point where two line meet.
400
Can a triangle have these angle measures?
30, 60, 90.
Yes they add up to 180.
400
A parallelogram has what kind of sides?
What is two sets of parallel lines?
400
What are the measurements of angles x and y?
x + 150 = 180, so x = 30 degrees
x and y are vertical angles, so y = 30 degrees
500
The number of degrees total in a triangle
180 degrees
500
Ray
Fixed starting point no end point
500
What are the 3 types of triangles by sides.
Scalene, Equilateral, Isosceles
500
The formula for the area of a triangle
What is A = (1/2)bh
500
Find angles x and y
x = 120 degrees
y = 50 degrees
600
What are the 3 types of angles?
Acute, Obtuse, and Right.
600
Triangles that have one 90 degree angle
right triangle
600
FREE
Free
600
The formula for the area of a parallelogram
What is A = bh?
600
What is the measurement of misssing angle in aright angle triangle with an angle 45 degree.
45+90= 135
180-135=45