Surface Area
Circle Geometry
Symmetry & Similarities
Definitions
Mixed 1
Mixed 2
100
Find the surface area of the cube.
294in2
100
Line AB is a tangent. O is the centre of the circle. What is the measure of angle B?
27 degrees
100
How many lines of symmetry does the shape below have?
2
100
The sum of all angles in a triangle is ______.
180 degrees
100
What shapes can be found in a cylinder when you unroll it into a "net"? (say how many of each shape)
2 circles and 1 rectangle
100
Find the angle of the "?"
140 degrees
200
What is the surface area of this prism?
256cm2
200
Find x and y.
y=60o
x=60o
200
List 3 letters that have a vertical line of symmetry.
A, H, I, M, O, T, U, V, W, X, Y
200
A line segment that connects two points on the circle without necessarily passing through the center.
Chord
200
Find x and y.
x=40o
y=40o
200
List 3 letters that have 180 degree rotational symmetry.
S, X, Z, O, N, I, H
300
What is the surface area of the giant Coke Can?
5777.6ft2
300
CAD is the diameter. What is the measure of angle CDE?
63°
300
Triangle PRQ is the original. Triangle SUT is the scaled drawing. What is the scale factor?
1.5 (or 3/2)
300
In a circle, if the radius is perpendicular to a chord, then the radius ______ the chord.
bisects/cuts in half
300
Bob wants to build a doll house for his daughter that is proportional to their house. He measured the living room of his house and it is 12 ft by 16 feet. What will be the dimensions of the doll house living room if the scale factor is 0.2.
2.4 ft by 3.2 ft
300
What is the surface area of a popcorn box with dimensions: 4in, 5in and 10in tall. The popcorn box has no top.
200in2
400
Find the Surface Area.
390u2
400
The radius of this circle is 20. Solve for side x.
44.72
400
Name the order AND degree of rotation for the following shape:
Order: 4
Degree: 90o
400
Lines that intersect and form a 90 degree angle.
Perpendicular Lines
400
207.3yd2
400
A circle has a circumference of
18.84 cm
What is the area? (Use 3.14 for pi)
CIRCUMFERENCE=pi*diameter
AREA=pi*radius^2
CIRCUMFERENCE=pi*diametre
AREA=pi*radius2
28.26 cm2
500
What is the side length of a cube with a surface area of 73.5cm2.
3.5cm
500
Find x.
x=4
500
These two shapes are similar. Solve for the missing side "?".
20
500
An angle whose vertex is on the perimeter of the circle.
Inscribed Angle
500
1 can of paint covers 100 square feet. How many cans of paint would it take to cover the walls of a room that is 25 feet long, 30 feet wide, and 9 feet tall?
10 cans (you can't buy 9.9 cans)
500
DOUBLE JEOPARDY
The Line AB is NOT tangent to the circle (even if it looks like it). Explain why.
Try doing Pythagorean Theorem on the triangle - it won't add up!