190 000 000 cm³ 6.57 m 17 a b 18 No, you can only see a distance of 39.5 km Exercise 2A 1 a a = 70° b b = 75°, c = 85° c d = 90°, e = 42° = 65°, = 115°, = 65°, = 115° d f g h i e j = 98°, k = 33°, l = 147°, m = 98° f n = 35°, o = 83°, p = 118°, q = 118° 2 a 80° b 20° c 15° d 45° e 10° 3 a 128° b 30° c 20° d 15° e 25° 4 a = 82° (corresponding angles) b = 52° split angle f into angles c and d c = 23° (alternate angles) d = 54° (alternate angles) so f = 77°
17 a 190 000 000 cm³ b 6.57 m 18 No, you can only see a distance of 39.5 km Exercise 2A 1 a a = 70° b b = 75°, c = 85° c d = 90°, e = 42° d f = 65°, g = 115°, h = 65°, i = 115° e j = 98°, k = 33°, l = 147°, m = 98° f n = 35°, o = 83°, p = 118°, q = 118° 2 a 80° b 20° c 15° d 45° e 10° 3 a 128° b 30° c 20° d 15° e 25° 4 a = 82° (corresponding angles) b = 52° split angle f into angles c and d c = 23° (alternate angles) d = 54° (alternate angles) so f = 77°