The answers is a because the radius must be 5
Answer:
$5.36
Step-by-step explanation:
multiply 8 by .67
ABCDE is a regular pentagon which consists of 5 equal triangles.
Area of the pentagon ABCDE:
A = 5 * 1.41 * 9.7 / 2 = 683.85 / 2 = 341.925 ≈ 341.9 cm²
Answer: The area of the pentagon ABCDE is 341.9 cm².
I'm confused on what you're asking, but this is scientific notation on the first one of 0.0000855. 8.55 x 10^-5
