Mathematics for Construction Quiz

A construction worker needs to measure a length of 15 feet. How many metres is this approximately? (1 metre = 3.28084 feet)

• 4.57 metres

• 5.00 metres

• 4.00 metres

• 4.80 metres

If a wall requires 50 bricks per square metre, how many bricks are needed for a wall that is 10 metres long and 2 metres high?

• 500 bricks

• 1000 bricks

• 750 bricks

• 1200 bricks

Calculate the area of a triangle with a base of 8 metres and a height of 5 metres.

• 20 square metres

• 30 square metres

• 40 square metres

• 25 square metres

• 282.6 cubic metres

• 188.4 cubic metres

• 94.2 cubic metres

• 150.8 cubic metres

In a right-angled triangle, if one side is 3 metres and the hypotenuse is 5 metres, what is the length of the other side?

• 4 metres

• 5 metres

• 3 metres

• 6 metres

What is the sine of a 30-degree angle?

• 0.5

• 0.866

• 0.707

• 1

Two triangles are similar. The sides of the first triangle are 3, 4, and 5 metres. If the longest side of the second triangle is 10 metres, what is the length of the shortest side?

• 6 metres

• 4 metres

• 5 metres

• 3 metres

A dataset contains the following numbers: 5, 7, 8, 9, 10. What is the mean of this dataset?

• 7.8

• 8.2

• 7.5

• 8.0

A builder needs to convert 200 ounces to pounds. How many pounds is this? (1 pound = 16 ounces)

• 12.5 pounds

• 15 pounds

• 10 pounds

• 14 pounds