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Question 1
2 marksA right-angled triangle is shown. The vertical side is labeled 20 cm. The hypotenuse is labeled x x\,x cm. The angle at the bottom right vertex is labeled 35∘35^\circ35∘. A small square at the bottom left vertex indicates a right angle.
When labelling a right-angled triangle, which side is fixed no matter which angle θ\thetaθ you choose?
Revision notes for WJEC GCSE Maths SOHCAHTOA (Trigonometry): explanations and worked examples.
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In right-angled triangle ABCABCABC, angle BBB is 90°90\text{°}90° and you are working from angle AAA. Which side is adjacent to angle AAA?