Circles
Angles
Triangles
Area, Formulas, & Scale Factor
Composite Shapes
100
What is it called when you measure from the center of a circle to the outside?
radius
100
What type of angle pair is shown?
complementary (and also adjacent)
100
In every triangle, the angles must add up to what?
180°
100
A scale factor can increase or decrease the size of a figure. Which scale factor would NOT decrease the size of a figure?
a) 0.25
b) 1.2
c) 65%
d) 3/4
b) 1.2
200
What is it called when you measure across the circle through the center point?
diameter
200
What type of angle pair is shown?
supplementary (and also adjacent)
200
Order the sides of this triangle from smallest to largest in measure.
g, f, h
200
What is the formula for area of a rectangle?
A = L•W
300
What is it called when you measure the distance around the outside of a circle?
circumference
300
What is the measure of angle R?
84°
300
12 units
7 units
20 units
These side lengths form:
a) a unique triangle
b) more than one triangle
c) no triangle
c) no triangle
300
What is the area formula for a triangle?
A = (b•h)/2
400
What is the area of this circle?
9pi cm^2 ≈ 28.3 cm ^2
400
What are the measures of angles x and y? (You must answer both.)
x= 50°
y=130°
400
What type of triangle is this?
scalene
400
What is the area formula for a circle?
A = pir^2
400
What formulas would you need to use to solve for the area of this shape?
A=(b•h)/2
A=L•W
500
What is the area of this circle?
64pi cm^2 ≈ 201.06 cm^2
500
m∠A=52°
m∠B=38°
500
What is the area of this triangle?
24 units^2
500
d) 4:1
500
What is the total distance around the outside of this shape?
74+12pi ft ≈ 111.699 ft