What shape has four 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 is true of all right triangles.
They have 1 90˚ angle.
What is true about the slopes of perpendicular lines?
They are opposite reciprocals
Simplify n-3n+5n
3n
What is the shape that has 4 congruent sides?
A rhombus
What is true about vertical angles?
They are always congruent.
Solve for x.
10
The area formula of a circle.
What is π*r2?
A shape that has nine sides.
A nonagon.
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.
What is formula to find the measure of each interior angle in a regular polygon?
180(n-2)/n
The circumference of a circle
What is 2πr or πd?
A shape that has four sides.
A quadrilateral
What is true of complementary angles?
They add to 90˚.
Write the correct equation to solve for x.
tan20=10/x
When parallel lines are intersected by a transversal these angles are supplementary.
What are same side interior or same side exterior angles?
What is true about corresponding angles when a transversal cuts parallel lines?
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?
Write the Law of Cosines.
c2=a2+b2-2ab*cos(C)
Factor 2x2-6x-20