The diagram shows a square-based pyramid EABCDEABCDEABCD.
AB=8 cmAB = 8 \text{ cm}AB=8 cm
The point E E\,E is 12 cm vertically above the center of the base.
Calculate the size of angle EACEACEAC. Give your answer correct to 1 decimal place.
Practise OCR GCSE Maths 3d Pythagoras and Trigonometry with exam-style questions for Foundation and Higher tier. 24 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
