What's the Formula? Rectangles Parallelograms Triangles Missing Dimensions

100

What is A= l x w?
The formula for the area of a rectangle.

100

What is 35 cm²?
The area of a rectangle with a length of 7 cm and a width of 5 cm.

100

What is 28 m²?
The area of a parallelogram with a base of 7 m and a height of 4 m.

100

What is 18 cm²?
The area of a triangle with a base of 9 cm and a height of 4 cm.

100

What is 9 cm?
The length of a rectangle with an area of 36 cm² and a width of 4 cm.

200

What is the formula for the perimeter of a rectangle or square?
l + w + l + w

200

What is 36 m²?
The area of a square with a side length of 6 m.

200

What is 56 cm²?
The area of a parallelogram with a base of 8 cm and a height of 7 cm.

200

What is 5 m²?
The area of a triangle with a base of 2 m and a height of 5 m.

200

What is 8 m?
The length of a square with an area of 64 m².

300

What is A = b x h?
The formula for the area of a parallelogram.

300

What is 30 cm²?
The area of a rectangle with a length of 10 cm and a width of 3 cm.

300

What is 16 cm²?
The area of a rhombus with a base of 4 cm and a height of 4 cm.

300

What is 20 km²?
The area of a triangle with a base of 10 km and a height of 4 km.

300

What is 6 m?
The height of a parallelogram with an area of 54 m², a base of 9 m, and a side length of 3 m.

400

What is b x h ÷ 2 OR ½b x h?
The formula for the area of a triangle.

400

What is 2000 cm² (or 0.2 m²)?
The area of a rectangle with a length of 1 m and a width of 20 cm?

400

What is 1600 cm² (or 0.16 m²)?
The area of a parallelogram with a base of 1 m and a height of 16 cm.

400

What is 21 cm² (or 2100 mm²)?
The area of a triangle with a base of 70 mm and a height of 6 cm?

400

What is 8 cm?
The height of a triangle with a base of 12 cm and an area of 48 cm².

500

What is A = b x h?
The formula for the area of a rhombus?

500

What is 60 000 cm²?
The area in cm² of a rectangle with a length of 300 cm and a width of 20 dm.

500

What is 20 cm² (or 2000 mm²)?
The area of a parallelogram with a height of 40 mm and a base of 5 cm.

500

What is 6 m² (or 60 000 cm²)?
The area of a triangle with a base of 4 m and a height of 300 cm.

500

What is 80 cm or 800 mm?
The base of a triangle with an area of 240 cm² and a height of 60 mm.

Area Problems - Rectangles, Parallelograms & Triangles

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