Area of Triangles
Area of Parallelograms
Area of Trapezoids
Vocabulary
Formulas
100
b=5 h=6
What is 15 square units?
100

Base = 15 in.

Height = 6 in.

What is 90 sq. in.

100
B1=5 B2= 3 h= 3.5
What is 14 units squared?
100
The formula for the area of ____________ is A=bh.
What is a parallelogram?
100
The area for a rectangle is found by this formula.
What is A= base x height or length x width
200
b=25 h=30
What is 375 square units?
200
b=5.4 cm h=12.75 cm
What is 68.85 cm2?
200
B1=15 B2=12 H= 6.3
What is 85.05 units squared?
200
This can be made up of triangles, quadrilaterals, semicircles, and other 2D figures.
What is a composite figure?
200
This is the formula for the area of a triangle.
What is 1/2bh?
300
Mrs. Giuntini’s lawn is triangle shaped with a base of 25 feet and a height of 10 feet. What is the area of Mrs. Giuntini’s lawn?
What is 125 ft2?
300
b=34 h=54
What is 1836 square units?
300
B1=45 B2= 30 H=23
What is 862.5 square units?
300
An equation that shows a relationship amoung certain quantities is called this.
What is a formula?
300
This is the formula for the area of a trapezoid.
What is 1/2 (b1 + b2) h?
400
Courtney wants to carpet part of her bedroom that is shaped like a right triangle with base 4.8 meters and height 5.2 meters. How much carpet will she need?
What is 24.96 m2?
400
Manu is a sunflower farmer. His farm is in the shape of a parallelogram with a height measuring 3.5 kilometers and a base measuring 4.25 kilometers. What is the total land area Manu uses?
What is 14.875 km2?
400
B1=5 1/2 B2= 6 1/4 H= 3 1/6
What is 69 1/2 square units?
400
This is a closed figure formed by 3 or more straight lines.
What is a polygon?
400
Why does a triangle's formula for area have 1/2?
What is because it is half of a rectangle?
500
b=25.2 h=13
What is 165.75 square units?
500
Tara and Veronica are in charge of making a banner for the volleyball game this Saturday. How much poster paper will they need for a parallelogram-shaped banner with height 3 1/2 feet and base 6 1/4 feet?
What is 18 1/8 feet2?
500
b1=4.5 b2=5.6 h=7.8
What is 39.39 square units?
500
Draw an example of congruent figures.
What is many different answers accepted. Check with teacher.
500
This is the reason trapezoids have 1/2 in their formula.
What is because it is half of a parallelogram?