Triangles and Parallelograms Concepts

Mr. Richards reviews grade 6 unit 1 lesson 7, focusing on parallelograms and triangles. The lesson covers decomposing quadrilaterals into identical shapes, composing parallelograms using triangles, and calculating areas and heights of parallelograms. Students learn to identify impossible compositions and select segments representing height.

What is the area of the rectangle mentioned in the lesson?

• 4 square units

• 16 square units

• 8 square units

• 12 square units

Can two identical right triangles form a parallelogram that is not a square?

• Yes, by aligning them side by side

• No, they can only form a square

• Yes, by stacking them

• No, they cannot form any parallelogram

Which parallelogram cannot be formed using two copies of a triangle?

• Parallelogram B

• Parallelogram D

• Parallelogram A

• Parallelogram C

How can a rectangle be divided into two identical triangles?

• By cutting along the diagonal

• By cutting along the perimeter

• By cutting horizontally

• By cutting vertically

What is the area of a parallelogram with a base of 9 units and a height of 2/3 units?

• 12 square units

• 6 square units

• 9 square units

• 3 square units

If a parallelogram has an area of 12 square units and a base of 9 units, what is the height?

• 2 units

• 3 units

• 1 unit

• 1 and 1/3 units

What is the base of a parallelogram with an area of 7 square units and a height of 1/4 unit?

• 35 units

• 21 units

• 14 units

• 28 units

What is the formula for the area of a parallelogram?

• 2 x (Base + Height)

• Base x Height / 2

• Base x Height

• Base + Height

What is the equivalent of 4/3 units in mixed number form?

• 1 and 1/3

• 1 and 2/3

• 2 and 1/3

• 2 and 2/3

Which segments can represent the height if side n is the base?

• Segments A and B

• Segments C and D

• Segments E and F

• Segments H and G