SIMILARITY
In Similar Triangles, Corresponding Angles will be in what kind of ratio?
1:1
All 30-60-90 triangles are similar to eachother?
True/False
True
What is the acronym to make Trig Easier in right triangles?
SOH-CAH-TOA
Name the Quadrilaterals that are identified as a parallelogram?
Parallelogram
Rectangle
Rhombi
Square
If an inscribed angle and a central angle intercept the same arc, then they will be congruent angles?
True/False
False
One triangle has sides measure 5,7,10...Another Triangle has sides that measure 10,14,20.
How are these triangles similar?
1)AA 2)AAA 3)SAS Similarity 4)SSS Similarity
SSS Similarity
In a 30-60-90 triangle. Across from the 30 degree side is which side?
Short Side
The Perimeter of a square is 24. The length of one diagonal is?
6 Rad(2)
All Parallelograms have congruent diagonals?
True/False
False
In circle O, If AB is the diameter and angle BOC=50 degrees. What is the measurement of major arc CAB?
310
If 2 polygons are both squares, then they must be similar to each other.
True/False
True
In a 45-45-90 triangle, the side across from the right angle is called the...?
Hypotenuse
In right triangle ABC, DE=15, FE=10, DF=8, find Tan D.
10/8
What is the measurement of each exterior angle of an octagon?
45
What is the circumference of a circle whose radius is 5 inches?
10(PIE)
The angles of a triangles are in 4:5:6 ratio. What does the largest angle measure?
72 Degrees
Name a way to find the short side in a 30-60-90 right triangle.
Divide the radical 3 side by radical 3
OR
Divide the Hypotenuse by 2
In Triangle XYZ, x=10, y=15, z=25. What is the measure of angle Y to the nearest degree?
67
In rectangle ABCD, AB=5 and BC=12. AC must be...?
13
Pythagorean Triple
What is the length of the arc of a 60 degree central angle whose radius is 4?
4/3 (PIE)
If figure ABCD and figure EFGH are drawn. If AB=16, EF=8, and FG=3. What is the ratio of similitude for ABCD and EFGH?
2:1
Geometric Mean:In Triangle ABC, the altitude is drawn from C to AB. AD=10 and DB=15.
What are the formulas to solve CD, AC, and CB?
CD=SqRt(10*15)
AC=SqRt((10+15)(10))
CB=SqRt((10+15)(15))
In Triangle ABC, Angle A=40, Angle B= 80, and a=5. What is the length of side b to the nearest tenth.
7.7
In parallelogram ABCD, diagonal BD is drawn.
If measure of angle D = 100
If measure of angle DCA = 30
What must the measure of angle BAC?
30 degrees
The inscribed angle measures 65, what is the measure of the arc it intercepts?
130 degrees