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How to solve for x in these shapes?
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How to solve for x in these shapes?

How to solve for x in these shapes?-example-1
User Rauberdaniel
by
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1 Answer

5 votes

Answer:

Explanation:

a

sum of angles of a quadrilateral=360°

4x+5x+20+5x-10+3x+10=360

17x=360-20

17x=340

x=340/17

x=20

b.

sum of angles= (n-2)×180

where n is the number of sides.

5x+4x+2+5x+6+2x-2+3x+5+x-10=(6-2)×180

20x+1=720

20x=719

x=35.95

User Waanders
by
4.3k points
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