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3 years ago

PLEASEEE HELPP MEE WITH QUESTION 4 AND 5

Mathematics

1 answer:

ANEK [815]3 years ago

7 0

Answer:

4) c = 38

5) x = 50

Step-by-step explanation:

4) The marked angles are a "linear pair", meaning their total is 180°:

3c° +(2c -10)° = 180°

5c = 190 . . . . . . . divide by °, add 10, collect terms

c = 38 . . . . . . . . . divide by 5

5) The interior angle at C brings the total of the marked angle and the interior angle to 360°

330° + (interior angle) = 360°

(interior angle) = 30° . . . . . . . . . subtract 330°

The interior angles of the triangle total 180°, so we have ...

x° +2x° +30° = 180°

3x = 150 . . . . . . . . . . . . . divide by °, subtract 30

x = 50 . . . . . . . . . divide by 3

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