4 years ago

Find the value of x please .

Mathematics

2 answers:

iogann1982 [59]4 years ago

7 0

Answer:

21 is the correct answer

180°(sum of the angles in a triangle)-40°=140°

if x is 21°, 5x+14° would be 119°

119°+21°=140°

anygoal [31]4 years ago

3 0

Answer:

The correct answer is A. 21

Step-by-step explanation:

Let's recall that the interior angles of a triangle add up to 180°, therefore, we have this equation:

40 + x + 5x + 14 = 180

6x = 180 - 14 - 40

6x = 126

x = 126/6

x = 21

The correct answer is A. 21

The angles of the triangle are: 40°, 21° and 119°

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