<p>Im so dumb in geometry :(</p>
<p>2 30 60 90 triangles. you have the length of 1 side (3) so you can calculate the length of the hypotenuse and multiply the length of the hypotenuse by 2. add 18 to that aned you have the perimeter.</p>
<p>Im so dumb in geometry :(</p>
<p>2 30 60 90 triangles. you have the length of 1 side (3) so you can calculate the length of the hypotenuse and multiply the length of the hypotenuse by 2. add 18 to that aned you have the perimeter.</p>