Find the value of r, with explanation
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sum of all angles of pentagon = 540°
90°+110°+r°+140°+80° = 540°
420 °+r ° = 540°
r° = 120°
90°+110°+r°+140°+80° = 540°
420 °+r ° = 540°
r° = 120°
Answered by
1
Clearly it is a pentagon
And the sum of angles in a pentagon is = 540 degrees
Therefore :
110 + 140 + 80 + 90 + r = 540
420 + r = 540
r = 540 - 420
r = 120
Hope it helps you.
Have a good day.
And the sum of angles in a pentagon is = 540 degrees
Therefore :
110 + 140 + 80 + 90 + r = 540
420 + r = 540
r = 540 - 420
r = 120
Hope it helps you.
Have a good day.
udit43:
Most welcome
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