exam Maths Puzzle Numerical Ability

PQR is an isosceles triangle such that QP=QR=13cm and the altitude PS=12cm. Find the length of PR.

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exam Other Question

Please help me simplify the following -6d-30/d+5. 25 team members shake hands. how many handshakes take place?hint look at the pattern people = 2,3,4,5 handshakes= 1,3,6,10 can you please help?