Cut the 4 corners off and you will have an 8-sided octagon
The answer would be C and E
<h2><em>To enlarge or reduce any shape you must begin by working out the scale factor, this is calculated by using the following formula:
</em></h2><h2><em>
</em></h2><h2><em>For an enlargement = large number ÷ small number
</em></h2><h2><em>
</em></h2><h2><em>For a reduction = small number ÷ large number</em></h2>
2/5*15/17*3/4
= 2*15*3/5*17*4
= 2*15*3/340
= 90/340
=90/34
hope this helps hope I'm right :)