Use mental math to find the difference. 1254 - 320
2 answers:
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<span>If you are given a convex polygon with </span>
<span> sides and </span>
<span> is the sum of the measures of the interior angles then </span>
<span>.
So, </span>
.
The polygon has 11 sides.
So, </span>
The polygon has 11 sides.