Angles & Triangles
What is the measure of a straight angle?
180 degrees
What is the formula for the area of a triangle?
A=bh1/2
A table shows a constant rate of 3. What equation represents the relationship?
y=3x
Write an equation for: “y is 5 times x.”
What is 20% of 60?
12
Two angles add to 90°. What are they called?
Complementary Angles
A circle has radius 4 cm. What is its circumference?
50.265 cm
If a graph is proportional, which point must it pass through?
(0,0) or the origin
A car travels 120 miles in 3 hours. What is the unit rate?
40 mph
A price increases from $50 to $65. What is the percent increase?
30%
In a triangle, two angles are 40° and 65°. What is the third angle?
75 degrees
Find the area of a parallelogram with base 6 cm and height 9 cm.
54 cm²
A table shows x = 4, y = 10. What is the constant of proportionality?
k=10/4=2.5
A recipe uses 2 cups of sugar for 5 cups of flour. If you use 15 cups of flour, how much sugar do you need?
6 cups
A student estimates 40 jellybeans in a jar. The actual number is 52. What is the percent error?
12/52 = 23.1%
If ∠A and ∠B are vertical angles and ∠A = 52°, what is ∠B?
52 degrees
A rectangular prism measures 5 × 3 × 2. What is its volume?
30 cubic units
A graph shows that when x = 2, y = 7. What is the unit rate?
3.5
A map scale says 1 inch = 50 miles. How many miles is 3.5 inches?
175 miles
A shirt is on sale for 25% off. Original price: $32. What is the sale price?
$24
A right rectangular prism is sliced parallel to its base.
What 2D shape is the cross section?
Rectangle
A cylinder has radius 3 m and height 10 m. What is its volume?
282.74 m³
A relationship is given by the graph of the line y = 0.8x. Is this proportional?
Yes, because it is in the form y=kx.
A phone company charges a proportional rate. If 8 GB costs $28, write the equation for cost C based on gigabytes g.
C=3.50g
A quantity decreases from 120 to 90. What is the percent decrease?
25%