Formulas
Triangles
Circles
Angle Relationships
Random
100
What is the formula for the area of a triangle?
1/2 base x height
100
Solve for x.
x=13
100
What does the (h, k) and r stand for in the circle equation?
(h,k) is the center
r is the radius
100
Describe or draw a pair of vertical angles and explain their relationship.
Two lines intersecting, opposite angles. They are congruent.
100
What does SOHCAHTOA stand for?
Sine, Opposite, Hypotenuse
Cosine, Adjacent, Hypotenuse
Tangent, Opposite, Adjacent
200
Area of a Circle
Area = πr2
200
Solve for y and round to the nearest tenth.
y=8.9
200
A line segment whose endpoints both lie on the circle
What is chord
200
What is it called when two angles are on a line and together, they add up to 180 degrees?
Linear Pair
OR
Supplementary
200
Name the radii of Circle A
__
AD
__
AE
__
AF
300
What is the formula for graphing a circle?
(x-h)2 + (y-k)2=r2
300
Solve for h using Trigonometry. Round to the nearest tenth.
h=95.1
300
A tangent hits the outer edge and the secant goes through the circle.
A tangent hits the outer edge and the secant goes through the circle.
300
m∠1=(6x+40)º and m∠2=(9x+4)º
What is m∠2?
112º
300
What are the six ways a triangle can be classified (by its sides and angles?)
Scalene, Equilateral, Isosceles
Obtuse, Acute, Equiangular
400
What is the formula for finding the endpoint?
M = (x2 + y2)
2
400
What is the length of TI (in radical form)?
TI = 7 radical 3
400
The part of the circle that is double the radius
What is a diameter
400
EG bisects ∠DEF. If m∠DEG=(3x+7)º and
m∠DEF=(4x+34)º, then m∠GEF = ____?
37º
400
Which are the two that cannot make a pair of triangle congruent?
SSS, AAA, SAS, ASA, SSA, AAS
AAA, and SSA
500
What is the formula for Arc Length?
x x circumference
360
500
What are the lengths of the legs
5 radical 2
500
Given the circle with Radius (2x+5)meters, state the area
What is (4x2+20x+25)pie
500
Given the coordinates A(1,3), B(5,-3) and C(-2,-2). State the new coordinates after Rotating 90˚clockwise
What is A(3,-1), B(-3,-5) and C(-2,2)
500
Giant Eagle recently changed the size of their soup can, but kept the price the same. The original can had a diameter of 10 cm, and a height of 9 cm. The smaller can has a radius of 3.5 cm and a height of 7 cm. How much more soup does the first can hold?
About 437 cm squared more