Angles/Triangles
Formulas
Basic Definitions
SOHCAHTOA
Problems to Work
100
Angle that measures less than 90°
What is an Acute Angle?
100
Volume of a rectangular prism
What is length x width x height?
100
A line segment joining two points of a circle's circumference and passes through the center
What is Diameter?
100
Sine formula
What is Sine = opposite / hypotenuse?
100
Angles A and B are complementary and the measure of angle A is twice the measure of angle B. Find the measures of angles A and B
What is A=60° and B=30°?
200
An angle that measures more than 90°
What is an Obtuse Angle?
200
Circumference of a circle
What is 2𝛑r?
200
Line that goes from the center to the perimeter of a circle
What is Radius?
200
Cosine formula
What is Cosine = Adjacent / Hypotenuse?
200
Find the measure of angle MBD
What is 72°?
300
A triangle with all three sides of equal length (each internal angles = 60°)
What is an Equilateral Triangle?
300
Area of circle
What is 𝛑r2?
300
Distance around the circle (perimeter)
What is Circumference?
300
Tangent formula
What is Tangent = Opposite / Adjacent?
300
Find the area of the shaded region
What is 208 cm2?
400
A triangle with two equal length sides (and two equal internal angles)
What is an Isosceles Triangle?
400
The Distance Formula
What is √(x2-x1)2+(y2-y1)2?
400
A point that divides a segment into 2 congruent segments
What is midpoint?
400
45 - 45 - 90 formulas
(ALL FORMULAS)
What are...
Hyp = Leg x √2
Leg = Hyp/√2
400
ABC is a right triangle. AM is perpendicular to BC. The size of angle ABC is equal to 55 degrees. Find the size of angle MAC.
What is 55°?
500
A triangle with all three sides with different lengths
What is a Scalene Triangle?
500
Volume of a triangular pyramid
What is 1/3 x the area of the base x the height of pyramid?
500
Something that cuts an object into 2 equal parts
What is a bisector?
500
30 - 60 - 90 formulas
(ALL FORMULAS)
What are...
Hyp = SL x 2
LL = SL x √3
SL = Hyp/2
SL = LL/√3
500
The size of angle AOB is equal to 132 degrees and the size of angle COD is equal to 141 degrees. Find the size of angle DOB.
What is 93°?