4 years ago

PLEASE HELP QUICKLYYYY

Mathematics

1 answer:

julia-pushkina [17]4 years ago

3 0

9514 1404 393

Answer:

x = 48

Step-by-step explanation:

The sum of the angles in a pentagon is 540°, so you have ...

90° +100° +110° +2x° +3x° = 540°

5x = 240 . . . . . . . divide by °, subtract 300

x = 48 . . . . . . . . . divide by 5

_____

<em>Additional comment</em>

The sum of angles in a convex n-gon is (n -2)×180°. For a pentagon, that's 3×180° = 540°.

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