since the polygon has 8 chambers the angle of one chamber = 360/8 = 45°
so the angle WOP = 45°
now drawing a imaginary line which seperates the triangleWOP into half
so the angle of imaginary line is 45/2 = 22.5
sin(theta) = opp/hyp
since WP (opp) is unknown. take as x
sin(22.5) = x/44
0.383×4 = x
x = 1.532 (app) = 1.5 cm
perimeter = 1.5 × 8
= 12 cm
area of triangle WOP = 2×1/2 ×bh = bh
= 4×1.5
= 6 cm²
so the area of regular polygon = 8× area of a triangle
= 48 cm²
Answer:
4) A
5) E
Step-by-step explanation:
#4
Cross multiply the equation and you get:
Since 
is the same thing as 
, you can change the equation into 
Cancel out the y on the top and bottom and you get 1/10
#5
, simplify and you get 
so x=15
is equal to 
after you plug in x, and that is equal to 9
Answer:
x=16
Step-by-step explanation:
1. Cell
2. Tissue
3. Organs
4. Organ System
