Triangles
Rectangles
Proportions
Old Stuff
More Old Stuff!
100
What is the area of a triangle with a base of 10m and a height of 16m?
80 m2
100
Give the formula for perimeter of a square and a rectangle
Square: P = 4s
Rectangle: P =2l +2w
100
Is this a proportion? EXPLAIN your answer.
3/4=20/25
No.
100
x/4=20
x=80
100
Rewrite as an improper fraction:
4 4/5
24/5
200
Find the area.
59.5 in2
200
Find the perimeter of a rectangle with a width of 14 mm and a length of 20 mm.
P = 68 mm
200
Is this a proportional relationship? Explain.
Yes; it's a straight line and it passes through the origin.
200
What number goes in the blank?
9, 16, 25, 36, 49, ____, 81, 100, ...
64
200 bonus points: explain why.
200
What quadrant would this point be in: (4, -3)
Quadrant IV
300
Find the area of a triangle with a height of 4.5 units and a base of 9 units.
20.25 units2
300
Find the area and perimeter of a rectangle measuring 16 in. x 10 in.
P = 52 in.
A = 160 in2
300
If 6 pizzas will feed 18 students, how many pizzas are needed to feed 72 students?
24 pizzas
300
Give 3 values that are in the solution set.
any numbers greater than 3
300
Simplify without a calculator:
8-(-9)
17
400
Find the area and perimeter
(h = 14)
A = 140 units2
P = 48 units
400
I want to put crown molding around the ceiling of my living room, which measures 20 feet by 24 feet. How much do I need?
88 feet
400
Is this a proportional relationship? Explain.
No, because it does not pass through the origin.
400
Simplify:
4*2+(6-5)*2
10
400
2/3*5/12
5/18
500
Explain WHY the formula for the area of a triangle is 1/2bh.
Because a triangle is half of a rectangle
500
I am spreading grass seed on my back yard, which measures 120 feet by 100 feet. If one bag of grass seed covers 1000 square feet, how many bags do I need to buy? Explain.
I will need 12 bags of seed, because the area is 12,000 square feet.
500
If I drove 780 miles in 12 hours, how many miles per hour did I travel in?
65 mph
500
Put in order from least to greatest:
80%, 0.77, 7/9,
0.77, 7/9, 80%
500
2/3/5/12
8/5 or 1 3/5