1 year ago

I need help with my math

Mathematics

1 answer:

REY [17]1 year ago

7 0

EXPLANATION

Applying the sum of interior angles theorem give us the following relationship:

60 + 3x + (x+20) = 180

Removing the parentheses:

60 + 3x + x + 20 = 180

Adding like terms:

80 + 4x = 180

Subtracting -80 to both sides:

4x = 180 - 80

Subtracting numbers:

4x = 100

Dividing both sides by 4:

x = 100/4

Simplifying:

x = 25

Then, the missing angles are:

25 + 20 = 45 degrees

3*25 = 75 degrees

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