Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
Chapter Review
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Exercise 7 Page 646

Corresponding angles have equal measures.

16^(∘)

Practice makes perfect

Examining the given diagram, we can see markings on some angles.They indicate that these angles are congruent. Therefore, ∠ T≅∠ S. This means that the measure of ∠ T is the same as the measure of ∠ S, which is 74^(∘).

Now, to find the measure of ∠ V, we can use the Triangle Angle-Sum Theorem, which states that measures of the interior angles of a triangle add to 180^(∘). Since ∠ U is a right angle, △ TUV is a right triangle. Therefore, the acute angles are complementary. In this case, this means that m∠ T and m∠ V add to 90^(∘). m∠ T + m∠ V = 90^(∘) By solving this equation, we can find the measure of ∠ V.
m∠ T + m∠ V = 90^(∘)
74^(∘)+m∠ V = 90^(∘)
m∠ V = 16^(∘)