Shapes
What shape has all right angles and congruent sides?
A square
If the central angle of a circle is 70 degrees, the intercepted arc is how big?
70 degrees
What must be true about 3 side lengths for them to make a triangle?
The sum of any two sides must be greater than the 3rd side.
What is true about the slopes of perpendicular lines?
They are opposite reciprocals
Identify the center and the radius of the circle:
(x+4)^2+(y-6)^2=121
Center Radius
(-4, 6) 11
What is the shape that has 4 congruent sides?
A rhombus
What is true about vertical angles?
They are always congruent.
What does a bisector do?
Cuts in half or two equal parts.
The area of a circle.
What is pi x r squared?
A shape that has two pairs of consecutive congruent sides.
A kite.
What do all the angles in a triangle add up to be?
180 degrees
What is the hypotenuse?
The longest side of a right triangle.
How do you find the midpoint between two points on the coordinate plane?
Add x values and divide by 2. Add the y values and divide by 2. Answer is an ordered pair.
The circumference of a circle
What is pi X d or 2(pi)r?
A shape that has four sides.
A quadrilateral
What are the three ways to prove two triangles are congruent?
ASA, SAS, SSS
In a right triangle, one angle should be equal to____.
90 degrees
What is true about corresponding angles?
They are congruent.
Draw a shape that has 4 sides and only 1 pair of parallel sides.
Picture of Trapezoid
If an inscribed angle is 40 degrees, how big is the intercepted arc?
80 degrees
Use this to find the missing side of a right triangle when two side lengths are known.
What is the Pythagorean Theorem?
(pir^2h)/3
What does the linear pair Theorem state?
If two angles form a linear pair, then they are supplementary.