Quarter 1
slides a figure without rotating or flipping it
Translation
This segment connects the midpoint of two sides of a triangle.
What is a midsegment?
How many sides does a octagon have?
8
This segment touches a circle at exactly one point.
Tangent
This triangle has all sides congruent and all angles measuring 60
equilateral triangle
flips a figure over a line of reflection without changing size and shape.
What is a reflection?
What is the centroid?
Point is where the three medians of a triangle intersect/ Center (POC)
Find the area of a rectangle with dimensions 8 by 5
40
Half of a diameter
Radius
This transformation turns a figure around a fixed point.
What is a rotation?
(x,y)→(−y,x)
What is the rule for a 90° CCW rotation?
What is the circumcenter?
This point is formed by the perpendicular bisectors of a triangle and is equidistant from the vertices.
figure has two parallel circular bases and a curved surface.
What is a cylinder?
A triangle has two angles that measure 50° and 65°. What is the measure of the third angle?
65°
The longest side of a right triangle is called this.
What is the hypotenuse?
What is a dilation?
changes size but keeps the shape similar
This line divides an angle into two congruent angles.
angle bisector
Find the volume of a rectangle 3x4x10
120 cubic units
Area of a Circle
Area=πr2
This geometric figure is always well-rounded and has no corners.
What is a circle?
What are a linear pair
These two angles add up to 180 and form a straight line.
Which triangle center is ALWAYS inside the triangle
Incenter
This 3D figure has two congruent circular bases and one curved lateral surface.
Cylinder
A triangle has angles measuring 40° and 75°. What is the measure of the third angle?
40+75=115
180−115=65
Answer: 65°
This circle segment connects two points on the circle and does not pass through the center.
What is a chord?