Your answer would be A because the radius of the circle is half of its diameter.
Hope this helps <3 :)
Answer:
1728 for A
7290000 for B
Step-by-step explanation:
We know that
<span>The nine radii of a regular Nonagon divides into 9 congruent isosceles triangles
</span>therefore
[the area of <span>a regular nonagon]=9*[area of isosceles triangle]
</span>[area of isosceles triangle]=b*h/2------> 15*20.6/2----> 154.5 cm²
so
[the area of a regular nonagon]=9*[154.5]------> 1390.5 cm²
the answer is
1390.5 cm²
The answer to this question is 5/6
The answer would be a -3/4 I’m almost positive
