SOLUTION: If the ratios between the adjacent angles of a pentagon are 3:4:5:6:7, what is the size of the smallest angle?
a) 14.4 degrees b) 21.6 degrees c) 64.8 degrees d) 90 degrees
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a) 14.4 degrees b) 21.6 degrees c) 64.8 degrees d) 90 degrees
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Question 251320: If the ratios between the adjacent angles of a pentagon are 3:4:5:6:7, what is the size of the smallest angle?
a) 14.4 degrees b) 21.6 degrees c) 64.8 degrees d) 90 degrees
e) 108 degrees Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! sum of interior angles=180(n-2)
=180(5-2)
=180*3
=540
.
3x+4x+5x+6x+7x=540
25x=540
x=21.6
3x=64.8 degrees
.
Ed
