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Answer:
1. a) angle of
b) Chord
c) point of concurrency
d) sector
e) full
f) four
g) positive
h) positive integer
2. a) False
b) False
c) False
d) False
e) False
3. a) Straight angle
b) Acute angle
c) Right angle
d) Obtuse angle
4. a) (-7) - (-8) + (-90) -(2)
-7 + 8 - 90 + 2
(7-90) + (8+2)
-97 + 10
= -87
b) (-5 + 5) + (-11)
0 - 11
= -11
c) (-13) + 32 + 8 + (-15)
-13 + 32 + 8 - 15
(-13-15) + (32+8)
-28 + 40
= 12
d) (-10) - (-12) + (-30) + (-5)
-10 + 12 - 30 -5
(-10-30-5) + 12
-45 + 12
= -33
5. -16, -15, -14, -13, -12, -11, -10, -8
6. a) Isosceles triangle — An isosceles triangle is a triangle that has two sides of equal length.
b) Scalene triangle — A triangle in which all three sides have different lengths.
c) Equilateral triangle — An equilateral triangle is a triangle with all three sides of equal length.