Exploring Geometry

What type of angle is an angle that measures 90 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Calculate the area of a rectangle with a length of 8 cm and a width of 5 cm.

• 13 cm²

• 20 cm²

• 40 cm²

• 80 cm²

Which of the following triangles is classified as an equilateral triangle?

• A triangle with sides 3 cm, 4 cm, and 5 cm

• A triangle with sides 5 cm, 5 cm, and 8 cm

• A triangle with sides 6 cm, 6 cm, and 6 cm

• A triangle with sides 7 cm, 8 cm, and 9 cm

What is the perimeter of a square with a side length of 7 cm?

• 14 cm

• 21 cm

• 28 cm

• 49 cm

What is the volume of a cube with a side length of 4 cm?

• 16 cm³

• 32 cm³

• 64 cm³

• 128 cm³

Identify the shape that has four equal sides and four right angles.

• Rectangle

• Rhombus

• Square

• Trapezoid

What is the measure of an obtuse angle?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees but less than 180 degrees

• Exactly 180 degrees

Calculate the area of a triangle with a base of 10 cm and a height of 6 cm.

• 30 cm²

• 60 cm²

• 90 cm²

• 120 cm²

Which of the following shapes is not a polygon?

• Triangle

• Circle

• Pentagon

• Hexagon

What is the perimeter of a rectangle with a length of 12 cm and a width of 5 cm?

• 17 cm

• 24 cm

• 34 cm

• 60 cm