Triangles
Rectangles
Parallelograms and Trapezoids
Circumference
Area of circles
100
What is the rule for Perimeter of a Triangle?
P = Sum of sides or
P = S1 + S2 + S3
100
What are the formulas for perimeter and area of a Rectangle?
P = Sum of sides or l + w + l + w
P = 2 (L+W)
A = L x W
100
What are the formulas for Perimeter and Area of a Parallelogram?
P = Sum of sides
P = b + s + b + s
A = b x h
100
What is the formula for circumference?
C = π d
C = 3.14 x diameter
C = 2πr
C = 2 x 3.14 x radius
100
formula for area of circle?
A = πr2
A = Pi x radius squared
200
What is the formula for area of a triangle?
A = b x h divided by 2
200
What is the perimeter of this rectangle?
104mm
200
What is the perimeter of this shape:
124 m
200
What is the circumference if radius = 8 cm
50.24 cm
200
What does it mean to square a number?
Multiply it by itself
300
What is the perimeter of this triangle:
203cm
300
What is the perimeter of this rectangle?
74mm
300
What is the area of the parallelogram:
7,360 cm2
300
A regular lawn contains TWO circular gardens each with diameter of 5 feet. What is the total circumference of both lawn gardens combined?
Circumference of one garden: 15.7 feet
Circumference of two gardens: 31.4 feet
300
Area of circle with a radius of 6 inches
113.04 in2
400
What is the area of this triangle?
3km2
400
What is the area of this rectangle?
26.66m2
400
What is the base of the parallelogram if the Area is 60cm2?
12 cm
(Area divided by height equals the base)
INVERSE OPERATIONS!
400
The Circumference of a circle divided by the diameter gives you...
PI!
400
area of circle with diameter of 50cm
1,962.5 cm2
500
What is the area of this triangle?
0.7m2
500
What is the height of a rectangle with base length 25 cm has an area of 375 cm2.
15cm
500
A parallelogram shaped roof needs shingles. The roof has a height of 18 feet and a base of 26 feet. One box of shingles will cover 24 ft2. How many boxes of shingles will be needed?
A = b x h
A = 18 x 26
A = 468 ft2
468 divide by 24 = 19.5 so 20 boxes of shingles need to be bought so that there is enough.
500
If a swimming pool in the shape of a circle is 75 feet across at the longest part, what is the distance around the outside of the pool?
235.5 feet
500
Area of a semicircle with a diameter of 100 cm
3925 cm2