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Find the value of a. a) 15 b) 10 c) 25 d) 20

Find the value of a. a) 15 b) 10 c) 25 d) 20-example-1
User Acroyear
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3 votes

Answer:

answer d) 20

Explanation:

Because the two lines are parallel two by two, the figure is a parallelogram.

In a parallelogram the opposite corners are identical.

Given:

opposite corner1 = 130°

opposite corner2= (6a + 10)°

Because corner1 = corner2 we now have:

(6a + 10) = 130

6a + 0 = 130 -10

6a = 120

a = 20

Which is answer d).

User Jonafato
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