rule
Perimeter and area
Algebra simplify
Area of prisms and pyramids
similarities
100
y = ax + b
what is the value of a
What is the value of b
The value of a is the pattern
The value of b is y when x=0
100
What is the perimeter of a regular nonagon with a side measuring 4 cm ?
The perimeter is 9 x 4 = 36 cm
100
What is the simplified algebraic expression for the perimeter of a triangle with sides measuring
1.1x cm, 0.9x cm and 11 cm.
Perimeter = 2x+11 cm
100
Find to total surface area
Total area is 960 in2
100
Find the missing value
d the missing value
BC =0.33 or 1/3
200
y=3x
200
If a decagon has a side with an apothem of 25 cm and a perimeter of 400 cm. What is its area?
Area of the decagon is 5000 cm2
200
Find the Perimeter in the simplest form of a Pentagon with side measuring 4x-2 dm
Perimeter = 5(4x-2)
Perimeter = 20x-10 dm
200
Ab =____
AL =____
At =____
Ab = 14 cm2 x 2 = 28 cm2
Al = 234 cm2
At = 262 cm2
200
What is the ratio if?
300
To fix your refrigerator, the technician charges 80$ to go to your house and then charges 60$ per hour.
Show the rule of this situation?
Rule: y = 60x + 80
300
Deternine the side length if the perimeter is 127 cm
x + x+4 + X+6 = 127
3x+ 10 = 127
x= 39
39+4 39+6
The sides are: 39 cm, 43 cm and 45 cm
300
What is the Area of this triangle
Area triangle = b x h /2
A = (x+3 + x ) x 8 / 2
A = (4x+3) x 8 / 2
A = 32x+24/ 2
A = 16x+12
300
Ab =____
AL =____
At =____
Ab = 53.29 cm2
AL = 255.5 cm2
At = 308.79 cm2
400
What is the rule?
Rule is : y = 1.5 x
400
Find the area
Area is 49.5 mm2
400
Find the height of this trapezoid: 
400
What is the lateral area of an octogonal prism with sides measuring 4 cm and height is 19 cm ?
608 cm2
500
Bill works at a Water Park. He makes is 18.75$ per hour. He works 8 hrs per day.
He wants to buy a mountain bike costing $2400.00.
He has savings of 1200.00$.
How many days must he still work to pay for this bike? Find the rule to show your answer.
x is number of days
y is amount of money
In a day he makes: 18.75$/h x 8 h/day = 150$/day
Rule: y=150x + 1200
8 = x It would take 8 days
500
Find the area in dm2 of the shaded region if AP=26 cm ad QB=16 cm
The shaded area measures: 8.96 dm2
500
Find the algebraic expression of the blue area
A=bxh
A= (x+5)x
A= x2 + 5x
500
What is the total area of a pentagonal prism with sides measuring 6.3 cm, a height of 22 cm and apothem of 5.4 cm?
Total area = 863.10 cm2
500
Dilbert, Earl and Gladys are collecting rocks.
Dilbert has 16 les than the 3 quaters of Gladys. Earl has double the amount of Dilbert
All together they have 82 rocks, how many rocks does each one of them have?
Gladys :
x : 40 rocks
Dilbert: 3x/4 - 16 : 3x40/4 -16 =
14 rocks
Earl: 2(3x/4 - 16) = 3x/2 - 32 = 3x40/2-32=
28 rocks
x + 3x/4 - 16 + 3x/2 - 32 = 82
x + 3x/4 + 3x/2 = 130
4x + 3x + 6x =520
13x = 520
x= 40
Check: 40 + 14 + 28 = 82