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40 votes
Calculate the value of a​

Calculate the value of a​-example-1
User Wagner Leonardi
by
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1 Answer

13 votes
13 votes

Answer:

25°

Explanation:

Angles in a circle add up to 360°

5a + (a + 60) + (2a + 100) = 360

5a + 3a + 160 = 360

5a + 3a = 8a

8a + 160 = 360

Make a the subject

8a + 160 = 360

8a = 200

200 ÷ 8 = 25°

Have a great day <3

User Galik
by
3.0k points