Grade 9 Pre-IB Unit 1 CP 10-11

Notice
Make sure to state that n > 0 as a side length cannot be negative as the reasoning why the side length n is not negative.

Exercise #1:
a) c = 10

b) b = 12

c) a = 3

Exercise #2:
a) c ≈ 7.21

b) b ≈ 15.59

Exercise #3:
a) x = 13

b) x = 6

Exercise #4:
a) No, it is not a pythagorean triple.

b) Yes, it is a pythagorean triple.

Exercise #5:
The distance from home plate to second base is about 127.3 ft.

Exercise #6:
5√3 is the height/altitude of the triangle.

Exercise #7:
The distance from Carlo's house to his school is about 8.5 miles.