Unit 4: Geometry Final Review Assignment
Workbook 4B
A bearing of 135
north
0
7. Orienteering is a sport that involves navigating your way to a
series of checkpoints with the aid of a map and compass. The
goal is to find each point on the map as quickly as possible. A
typical compass used for orienteering is divided into 360° where
0° is north and a bearing is measured clockwise from north.
270%
180"
Gabino and Mia are taking part in an orienteering course. They are instructed to walk 2.3 km on
a bearing of 305° to reach point A. There they are supposed to change their bearing to 64º and
walk 3.1 km to reach point B. Next, they are supposed to return to their original position, C.
a. Draw a diagram to represent this scenario.
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Tell
So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.
Answer from: Quest
Hi the answer is b hope that
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