Lines, Planes and Angles
Triangles
Other Polygons
Circles
Calculate it
100
What are two lines that are in the same plane but never intersect, like the top and bottom of a door called?
parallel lines
100
What do you call a triangle that has two congruent sides?
isosceles triangle
100
What is a five sided polygon called?
pentagon
100
What is a radius?
A line that goes from the center of the circle out. Half of the diameter.
100
What is the perimeter of a square that has equal sides of 3?
3+3+3+3= 12
200
What are two lines that are neither parallel nor intersecting called? Example: the bottom of the white board and the side of the door.
Skew lines
200
What do you call a triangle that has all three angles measure under 90 degrees?
Acute triangle
200
What is a eight sided polygon called?
Octagon
200
What is a chord?
A segment (line) that has both endpoints on the circle.
200
What is the perimeter of a regular pentagon that has equal sides of 10 inches?
50
300
What is an adjacent angle?
One that shares a wall. Shares a vertex and a side.
300
What is a triangle called that has all three sides of different lengths?
scalene triangle
300
What is a four sided polygon called?
Quadrilateral
300
What is the formula to find the circumference of a circle?
C = 3.14 (Pi) times Diameter
300
What is the area of a triangle that has a base of 10 cm and a height of 8 cm?
Area of a triangle is base times height divided by 2 80 / 2 = 40 cm squared
400
What do two complementary angles add up to?
90 degrees
400
If one angle is 70 degrees, one is 40 degrees, what is the measurement of the third angle?
70 degrees
400
What is a six sided polygon called?
Hexagon
400
What is the formula to find the area of a circle?
A = 3.14 (Pi) times radius squared A = 3.14 (Pi) times radius times radius A = 3.14 (Pi) times half the diameter squared
400
What is the circumference of a circle that has a radius of 5 mm?
31.4 mm
500
What is the measure of the supplement angle to 125 degrees?
55 degrees
500
A right angle has two other angles that are equal. What are they (each)?
45 degrees each.
500
What is a nine sided polygon called?
Nonagon
500
What it the area of a circle if the diameter is 6? Yes, you have to calculate it. No, you may not use a calculator.
A=3.14 times 9 3.14 times 3 times 3 = 28.26
500
What is the area of a circle that has a diameter of 10 cm?
78.5 cm
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