Geometry Review / Flashcard - 6th grade

Front

The base and height of a parallelogram must be...

Back

perpendicular

Answer explanation

The base and height of a parallelogram must be perpendicular to each other. This ensures that the height is measured straight up from the base, allowing for accurate area calculation.

Front

Find the area of the parallelogram.

Back

80

Answer explanation

The area of a parallelogram is calculated using the formula: Area = base × height. If the base is 10 and the height is 8, then Area = 10 × 8 = 80. Thus, the correct answer is 80.

Front

Area of the parallelogram?

Back

77 m²

Answer explanation

To find the area of a parallelogram, use the formula: Area = base × height. Given the dimensions, the calculation yields 77 m², making this the correct answer.

Front

How do you find the AREA of a TRIANGLE?

Back

base x height divided by 2

Answer explanation

To find the area of a triangle, use the formula: (base x height) divided by 2. This accounts for the triangle's shape, as it is half of a rectangle formed by the base and height.

Front

What is the area of this triangle?

Back

6 sq. cm.

Answer explanation

To find the area of a triangle, use the formula: Area = 1/2 * base * height. If the base is 4 cm and height is 3 cm, then Area = 1/2 * 4 * 3 = 6 sq. cm. Thus, the correct answer is 6 sq. cm.

Front

Find the area of the triangle.

Back

28 cm²

Answer explanation

To find the area of a triangle, use the formula: Area = 1/2 * base * height. Given the dimensions, the calculation yields 28 cm², making this the correct choice among the options.

Front

A flat "unfolded" representation of a prism or pyramid is called .......

Back

Net

Answer explanation

A flat "unfolded" representation of a prism or pyramid is called a "Net". It shows all the faces of the 3D shape laid out in 2D, making it easier to visualize the surface area and dimensions.

Front

Which figure will this net make?

Back

Rectangular Prism

Answer explanation

The net consists of rectangles that can be folded to form a rectangular prism. The other options, such as triangular prism and pyramid, require different shapes in their nets.

Front

Choose the correct net: A, B, C, D

Back

D

Answer explanation

Choice D is the correct net as it accurately represents the 3D shape when folded. The other options do not align properly to form the intended solid.

Front

The sum of all the areas of the faces of a 3-Dimensional figure.

Back

Surface Area

Answer explanation

The surface area of a 3-Dimensional figure is defined as the sum of the areas of all its faces. Therefore, the correct answer is 'Surface Area', as it directly describes this concept.