GCSE Secondary Maths Age 13-17 - Geometry & Measures: Triangles and Quadrilaterals - Explained

The video tutorial explains how to calculate the area of a trapezium using a specific formula and then demonstrates how to draw a triangle with an equal area. It emphasizes the importance of understanding and remembering geometric formulas for exams, providing practical tips for students to succeed in geometry-related questions.

What is the formula used to calculate the area of a trapezium?

• Base times height divided by two

• Half of the sum of the parallel sides times the height

• Length times width

• Base times height

If the parallel sides of a trapezium are 2 and 7 units, and the height is 4 units, what is the area?

• 28 square units

• 18 square units

• 36 square units

• 9 square units

How can you determine the base and height of a triangle to match a given area?

• Choose any base and height as long as their difference is the area

• Choose any base and height as long as their sum is the area

• Choose any base and height as long as their product is the area

• Choose any base and height as long as their quotient is the area

Which of the following is a valid factor pair for a triangle with an area of 18 square units?

• 10 and 3

• 8 and 5

• 9 and 4

• 7 and 6

What is a useful strategy for remembering formulas during an exam?

• Write them down on the exam paper as soon as the exam starts

• Ask the invigilator for help

• Memorize them the night before

• Ignore them and focus on practice problems