- Demonstrate the ability to identify an acute, right, obtuse, or straight angle
- Demonstrate the ability to find the complement or supplement of an angle
- Demonstrate the ability to find the measure of complementary and supplementary angles

#1:

Instructions: Find the complement of each angle.

$$a)\hspace{.1em}1°$$

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#2:

Instructions: Find the supplement of each angle.

$$a)\hspace{.1em}117°$$

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#3:

Instructions: Determine whether the given angle is acute, right, obtuse, or straight.

$$a)\hspace{.1em}68°$$

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#4:

Instructions: Find the measure of the complementary angles.

$$a)\hspace{.1em}(2x + 13)° \text{and}\hspace{.2em}(20x + 11)°$$

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#5:

Instructions: Find the measure of the supplementary angles.

$$a)\hspace{.1em}(3x + 10)° \text{and}\hspace{.2em}(15x - 10)°$$

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Written Solutions:

#1:

Solutions:

$$a)\hspace{.1em}89°$$

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#2:

Solutions:

$$a)\hspace{.1em}63°$$

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#3:

Solutions:

$$a)\hspace{.1em}\text{acute angle}$$

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#4:

Solutions:

$$a)\hspace{.1em}19°, 71°$$

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#5:

Solutions:

$$a)\hspace{.1em}40° , 140°$$