Exploring Shapes and Numbers

What is a directed number?

• A number that is always positive.

• A number with a sign indicating its direction, such as positive or negative.

• A number without any sign or direction.

• A number that only represents a quantity.

Identify the directed number: -5

• 5

• 0

• -10

• -5

Calculate the perimeter of a rectangle with length 8 cm and width 3 cm.

• 22 cm

• 18 cm

• 24 cm

• 20 cm

What is the area of a triangle with a base of 10 cm and a height of 5 cm?

• 20 cm²

• 15 cm²

• 25 cm²

• 30 cm²

Classify the shape with four equal sides and four right angles.

• Trapezoid

• Rectangle

• Rhombus

• Square

What is the perimeter of a square with a side length of 6 cm?

• 18 cm

• 30 cm

• 24 cm

• 12 cm

Calculate the area of a rectangle with a length of 12 cm and a width of 4 cm.

• 48 cm²

• 60 cm²

• 36 cm²

• 40 cm²

Identify the properties of a circle.

• A circle has varying radii at different points.

• The area of a circle is calculated as 2πr.

• A circle has a constant radius, a diameter that is twice the radius, a circumference calculated as 2πr, and an area of πr².

• A circle's diameter is equal to its circumference.

What is the area of a circle with a radius of 7 cm?

• 150.00 cm²

• 160.00 cm²

• 154.00 cm²

• 153.94 cm²

Classify the shape with three sides and three angles.

• Triangle

• Pentagon

• Rectangle

• Square