Geo 101
Get In Shape
What's Your Angle?
Trig or Treat
Full Circle
100
A set of points bounded by endpoints.
What is a line segment?
100
Polygons like this star can be described by this term, meaning (at least) one of its interior angles measure over 180°
What is concave?
100
This formula can be used to find the sum of interior angles of an n-sided polygon.
What is
(n-2)*180
100
The ratio of a right triangle's opposite side to adjacent side.
What is a tangent ratio?
100
Not to be mistaken for a Kendrick lyric, it's an arc whose angular measure is less than 180°.
What is a minor arc?
200
This type of reasoning involves observing specific cases and making generalizations about those cases.
What is inductive reasoning?
200
Although a bit misleading, this word describes a shape whose angles and sides are all congruent, like the one seen here.
What is regular?
200
They're just right for each other; two angles who sum to 90°.
What are complementary angles?
200
It's the value of theta in this triangle, rounded to the nearest degree.
What is 50°?
200
The equation of a circle whose center is (1,0) and whose radius is 9.
What is
(x-1)^2+y^2=9^2
300
To find the midpoint between two points, you use this formula.
What is:
300
This term meaning "two equal sides" usually refers to triangles, but can also be used for trapezoids.
What is isosceles?
300
It's what the Congruent Supplements Theorem says.
What is: two angles that are supplementary to the same angle are congruent to each other?
300
This is how to find the area of a non-right triangle using trig.
What is
A=1/2*a*b*sinC
300
It's the area of a sector formed by a central angle of 210° in a circle with diameter of 10 cm.
What is
175/12pi cm^2 or 45.8 cm^2
400
The slope of the line perpendicular to the line passing through the points
(1,2), (-3,4)
What is
2
400
These 3 quadrilaterals have diagonals that are perpendicular to each other.
What is a square, a rhombus, and a kite?
400
It's the value of x that makes lines m and n parallel
What is 5?
400
Without a calculator, it's the sine of a 30°
What is 1/2?
400
Angle M, of the cyclic quadrilateral seen here, has this measure.
What is 80°?
500
If the conditional and converse of a statement are both true, we call the statement this.
What is a biconditional statement?
500
Aside from being perpendicular, a kite's diagonals have these 2 properties.
What are: the longer diagonal bisects the shorter one, and the longer diagonal is a line of symmetry for the kite?
500
A 100 ft building casts a 300 ft shadow from the sun, and this is the resulting angle of depression.
What is 18.4°?
500
A base angle of an isosceles triangle is 30°, with one of the legs measuring 12. This number represents the length of the altitude.
What is
6*sqrt3
500
The diameter of a circle that passes through the point (1,5) and whose center is at (0,2)
What is
2*sqrt10