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kirza4 [7]
2 years ago
14

Fill in each blank with a true statement. . 4. IF ZAS ZB and the supplement of ZB has measure 22°, then ZA =

Mathematics
1 answer:
Maksim231197 [3]2 years ago
8 0

Angles are undefined terms in plane geometry.

The true statements are:

  • <em>4. </em>\angle A = 158<em>.</em>
  • <em>5. </em>\angle Q =90<em />
  • <em>6. </em>\angle U<em> is an obtuse angle</em>
  • <em>7. Its supplement must be an acute angle</em>
  • <em>8. See attachment</em>

<em />

<u>Question 4</u>

The first statement is represented as:

\angle A \cong \angle B

Supplement of \angle B = 22^o

\angle A \cong \angle B means that A and B are congruent.

The supplementary of A and B would be the same

The measure of A is then calculated as:

\angle A + 22 = 180

Subtract 22 from both sides

\angle A = 180 -22

\angle A = 158

<u>Question 5</u>

If LP and LQ are linear pairs, then:

LP + LQ = 90

So:

\angle Q + LP + LQ = 180

Substitute LP + LQ = 90

\angle Q + 90 = 180

Subtract 90 from both sides

\angle Q =- 90 + 180

\angle Q =90

<u>Question 6</u>

\angle S + \angle T = 90 --- S and T are supplementary

\angle T + \angle U = 180 --- T and U are complementary

Subtract both equations

\angle S + \angle T - \angle T - \angle U = 90 - 180

\angle S - \angle U = -90

Make U the subject

\angle U = 90 + \angle S

This means that:

\angle U > 90

Hence,  \angle U is an obtuse angle

<u>Question 7</u>

Obtuse angles are greater than 90 degrees but less than 180.

This means that their supplement must be an acute angle (i.e. less than 90)

<u>Question 8</u>

See attachment

Read more about angles at:

brainly.com/question/13954458

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