Use this graph for questions Annika's Trip
Distance from Home (miles) 5
0
10
20
60
70
80
30 40 50
Time (minutes)
Yesterday Annika rode her bike to visit her friend Tina. Together they walked to the library, and then Annika
returned home. The graph below represents Annika's trip.
Work/Answer
Question
15. Annika rode her bike from her home to Tina's
house. How fast did she ride, in miles per
hour?

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

a

step-by-step explanation:

the answer is a

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"