Surface Area and Volume Checkpoint

Front

Perimeter is the total distance around the outside of a shape. You can find the perimeter of any shape by adding up the lengths of the sides.

Back

True

Front

A tangent is a line that touches a circle at exactly one point.

Back

True

Front

A circle is a set of points equidistant from a fixed centre.

Back

True

Front

Formula for volume of a cube or cuboid: V = lbh (l = length, b = breadth, h = height). Is this true?

Back

True

Front

The surface area of a three-dimensional object is the total volume of all its faces.

Back

False

Front

A square field has a perimeter of 280 m. What is the length of one of its sides?

Back

70 m

Front

Two of the interior angles of a triangle measure 78⁰ and 72⁰. What is the measure of the third interior angle?

Back

30

Front

A small square is located inside a bigger square. The length of one side of the small square is 3 cm and the length of one side of the big square is 7 cm. What is the area of the region located outside the small square, but inside the big square?

Back

40 cm²

Front

A cube has six identical square faces, each of area 20 cm². What is the surface area of the cube?

Back

120 cm²

Front

A dog is tied to a wooden stake in a backyard. His leash is 3 meters long and he runs around in circles pulling the leash as far as it can go. How much area does the dog have to run around in?

Back

28.3 m²