smartkid29 smartkid29

29-03-2021
Mathematics

contestada

calculate the value of a

calculate the value of a class=

Respuesta :

zayeb27 zayeb27

29-03-2021

Answer:

25°

Step-by-step 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

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