Chapter 2 exercises

Author:Jorge Cássio

Topic:Angles

1- Check the correct alternatives (can be more than one). (Dolce & Pompeu)

Select all that apply

A
(UNB 1990) The bisectors of two adjacent and complementary angles form an angle of 45°.
B
If two segments are consecutive, then they are collinear.
C
If two segments are collinear, then they are consecutive.
D
If two segments are adjacent, then they are collinear.
E
If two segments are collinear, then they are adjacent.
F
If two segments are adjacent, then they are consecutive.
G
If two segments are consecutive, then they are adjacent.

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2- Check the correct alternatives (can be more than one). (Dolce & Pompeu)

Select all that apply

A
Two consecutive segments are adjacent.
B
Two adjacent segments are consecutive.
C
Two adjacent segments are opposed by the vertex.
D
Two segments opposed by the vertex are adjacent.
E
Two segments opposed by the vertex are consecutive.

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3- (Dolce & Pompeu-adapted) Consider that the supplement of three times the complement of half of an angle is equal to three times the complement of that angle. Then the angle measures:

4- (Dolce & Pompeu-adapted) The bisectors of two consecutive angles form an angle of 52º. If one of them measures 40º, then the other measures:

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5- (Dolce & Pompeu-adapted) The angles and and are opposed by the vertex. The angles are measured in degrees. The first angle is 9x-2 and the second is 4x + 8. Determine these angles.

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Chapter 2 exercises

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