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Help please I am a bit confused on this.

Help please I am a bit confused on this.-example-1
User Ausar
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2 Answers

3 votes

Good morning ☕️

____________________

Explanation:

Look at the photo below for the answer.

:)

Help please I am a bit confused on this.-example-1
User Ian Robertson
by
8.7k points
5 votes

Because there are 4 inside angles the sum of the four angles must equal 360 degrees.

Add the angles to equal 360:

4x + 3x + 2x + 3x = 360

Simplify:

12x = 360

Solve for x by dividing both sides by 12:

x = 360 /12

x = 30

Now you have x, solve for each angle:

ABC = 4x = 4 x 30 = 120 degrees.

BCD = 3x = 3 x 30 = 90 degrees.

CDA = 2x = 2x 30 = 60 degrees.

DAB = 3x = 3 x 30 = 90 degrees.

C. It's important to know that a four sides figure needs the inside angles when added together need to equal 360 degrees.

User Lindlof
by
8.5k points

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