B
D Fig. 12.7 DPT = 0.5 cm kercise 12.1 Construct a quadrilateral PQRS such that PŜR = 60°, IPSI = 6 cm, 1 SRI = 8 cm, IQRI=7 cm and IPQI=6 cm. Measure the lengths of the two diagonals.
In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?