Triangles
A quadrilateral with both pairs of opposite sides parallel
What is a parallelogram?
Angle smaller than a right angle (90°), but larger than a zero angle (0°).
What is an acute angle?
A polygon with five sides.
What is a pentagon?
Name of either of the two short sides.
What is leg?
Line connecting the vertex of a triangle to the midpoint of the opposite side.
What is the median?
A quadrilateral with four right angles.
What is a rectangle?
What are vertical angles?
The number of sides in an octagon.
What is 8?
The theorem that states a^2 + b^2 = c^2
What is the Pythagorean Theorem?
These angles are on the outside of two parallel lines.
What are exterior angles?
This segment of a polygon that joins two nonconsecutive (not next to each other) vertices.
What is a diagonal?
The number of degrees in a right angle.
What is 90 degrees?
Is said of two variables if their ratio is equal to a constant. Two variables are directly proportional if the multiplication of the value of one variable by one number has the effect of multiplying the value of the other variable by the same number.
What is proportional?
The longest side of the right triangle with sides 5 and 12.
What is 13?
Segment connecting a vertex to its opposite side (or its extension) by being perpendicular to that side. The side opposite the vertex is then called base.
What is height or altitude?
A quadrilateral with four congruent sides.
What is a rhombus?
An angle that forms 180 degrees.
What is a straight angle?
A triangle with two congruent sides.
What is an isosceles triangle?
The longest side of the right triangle with sides 7 and 24.
What is 25?
Triangles whose corresponding sides are proportional and corresponding angles are equal.
What are similar triangles?
To solve it, you would use the formula as shown below A=1/2bh
What is the area of a triangle?
Two angles whose sum is 180 degrees.
What are supplementary angles?
A triangle with no congruent sides.
What is a scalene triangle?
The longest side of the right triangle with sides 17 and 144.
What is 145?