Formulas
Calculate
Triangles and Trapezoids
Rectangles and Parallelograms
100

What is the formula for area of a triangle?

Base times height divided by 2

100

Find the area of the rectangle to the nearest 2 d.p


36.54 ft2

100

What is the area of a trapezoid with b1 = 4 cm, b2 = 6 cm, and the height is 5 cm.?

What is 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 1 d.p?

A = 10.3 ft2

200

What is the area of a triangle with a base of 15 cm and h = 8 cm?

What is 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 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

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 two shapes make up a trapezoid?

Triangle and Rectangle 


500

A pennant in the shape of a triangle has a base of 12 in. and a height of 30 in.

Calculate the area of the shape?

180in2

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 and the apron around the pool measure l = 42 ft. and w = 24 ft.  What is the area of the apron around the pool is 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?

(Base plus Base) times height divided by 2

Area of the rectangle plus area of the triangle

1000

The bases of a trapezoid are 11 meters and 14 meters. Its height is 10 meters. 

Calculate the area of the shape above.

125 m2

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?

What is 795 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?

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