Formulas
Calculate
Words
Triangles and Trapezoids
Rectangles and Parallelograms
100
What is the formula for area of a triangle?
b x h divided by 2
OR
1/2 x b x h
100
Find the area of the rectangle to the nearest hundredth.
36.54 ft2
100
Multiplying by half is the same as __________ by _______.
dividing, 2
100
What is the area of a trapezoid with b1 = 4 cm, b2 = 6 cm, and the height is 5 cm?
42 sq. cm
100
Find the area of a rectangle when the l = 7m and w = 9 m?
What is 63 sq. meters
200
What is the Area formula for a rectangle?
A = B x H
200
What is the area of this triangle to the nearest tenth?
A = 10.2 ft2
200
What is area?
The space a shape covers.
200
What is the area of a triangle with a base of 15 cm and height of 8 cm?
60 sq. cm
200
Find the area of the parallelogram when the b = 6 in. and h = 7 in.
What is 42 sq. inches?
300
Area of a Parallelogram
A = b x h
300
Find the area of the parallelogram with a base of 13.5m and a height of 12.5m
168.75m2
300
What are parallel lines?
Two lines that go in the same direction and never meet.
300
What is the area of a trapezoid whose b1 = 9 in., b2 = 5 in. and h = 6 in.?
What is 42 sq. in.?
300
Find the area of the parallelogram when b = 14 ft. and h = 19 ft.
What is 266 sq. ft.?
400
Which shape's area is half the area of a parallelogram?
A triangle
400
What is the area if a triangle if the base is 3.5 cm and the height is 7 cm?
A = 12.25 cm2
400
The height always makes a 90 degree angle with what?
the base
400
Find the area of the triangle where the base is 33.5 m and h = 10.4 m.
What is 174.2 sq. m?
400
Find the area of the of the rectangle when the l = 11.5 cm and the w = 6.4 cm.
What is 73.6 sq. cm?
500
What is the difference between triangle and rectangular formulas?
1/2
500
A parallelogram has a base length of 15 meters, a height of 7 meters, and a slant height of 10 meters.
Calculate the area of the shape.
105 m2
500
Draw a parallelogram
.
500
The area of trapezoid is 162 sq. inches, the base 1 is 24 inches, base 2 is 12 inches, so what is the height?
What is 9 inches?
500
A pool with the apron around the pool measures l = 42 ft. and w = 24 ft.
What is the area of the apron around the pool if area of just the pool measures l = 34 ft. and wide of 16 ft.?
What is 464 sq. ft.?
1000
How do you calculate the area of a trapezoid?
A = 1/2 x h (b1 + b2)
OR
Area of the rectangle plus area of the triangle
1000
There is a parallelogram with a base of 23 centimeters and a height of 9 centimeters. There is a triangle with the same base and height.
Find the area of both shapes added together.
310.5cm2
103.5cm2 + 207cm2
1000
Why do we divide by two when finding the area of a triangle?
Because a triangle is half of a square/rectangle
1000
There is an unusual house being built. The bottom is a trapezoid and the roof is a triangle. The trapezoid measures base 1 = 46 ft., base 2 is 36 ft. , the height is 15 ft. , and the height of the triangle is 10 ft. What is the area of the front of the house?
845 square feet
1000
If the area of a parallelogram is 256.5 sq. meters, and the base of it is 12.5 m, what is the height?
What is 20.52 meters?