2025 TKSS PRELIMS P1 Q5

2025 TKSS PRELIMS P1 Q5

Secondary 4
6 marks
2025 Tanjong Katong Secondary School Prelims A Math Paper 1

The volume of a prism is \(\left(2\sqrt{3}+2\sqrt{15}\right)\text{ cm}^3\). The prism has an equilateral triangular base of side \(\left(1+\sqrt{5}\right)\) cm. Without using a calculator, express the height of the prism in the form \(\left(a+b\sqrt{5}\right)\) cm, where \(a\) and \(b\) are integers.[6]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:\(\left(-2+2\sqrt{5}\right)\text{ cm}\)

Need help? Join our JC Math tuition classes.

Learn more