GCSE Secondary Maths Age 13-17 - Pythagoras & Trigonometry: Trigonometry - Explained

The video tutorial explains how to solve a right-angled triangle problem using trigonometric ratios. It begins by introducing the problem, labeling the triangle's sides, and identifying the hypotenuse and opposite side. The tutorial then demonstrates how to apply the sine ratio to calculate the unknown side, followed by performing the calculation and rounding the result to three significant figures. The video concludes with a discussion on the marks awarded for the solution and emphasizes the straightforward nature of the problem.

What type of triangle is ABC described in the text?

• Right angled triangle

• Acute triangle

• Obtuse triangle

• Scalene triangle

What is the length of the hypotenuse in the triangle?

• 10 centimeters

• 15 centimeters

• 20 centimeters

• 25 centimeters

What angle is given in the problem?

• 20 degrees

• 23 degrees

• 30 degrees

• 45 degrees

How do you label the side opposite the angle in the triangle?

• A

• B

• C

• O

What is the final answer for the length of side B to three significant figures?

• 5.86 centimeters

• 6.00 centimeters

• 5.50 centimeters

• 5.90 centimeters