Is it 7.1 or something I don’t know for sure
Answer:
Step-by-step explanation:
Area is half base × height
If area = 140 and height = 20 inches
base =140 ÷ 20 = 7 × 2 = 14 inches
Answer:
<h2>P = 48</h2><h2>A = 144 </h2>
Step-by-step explanation:
The formula of regular polygon with <em>n</em> sides of length <em>b</em> and apothem <em>a</em>:

We have:
n = 6
b = 8
a = 6
Substitute:

The perimeter:

6 foot =850
850÷6=141.667
then for 12 section
141.667x 12=1700 or
you find the ratio of 6:12
= 1:2
therefore 2×850=1700