Face east, turn through an angle of 180 degree to your right, your final direction will be .  east
north
south
west

Calculate the length of the third side of a triangle where AB = 6cm, BC = 8cm.
7cm
9cm
10cm
12cm

Pick out the sets of number that is NOT Pythagorean triples.
9, 40, 46
16, 30, 34
10. 24, 26
50, 120, 130
No rushing, take your time and give accurate answers.