Perimiter=2L+2W
w=x
P=80
80=2L+2x
diviide by 2
40=L+x
40-L=x
40-x=L
the area is found by legnth times width
LW or Lx
for a maximum area, try to get the legnths of the sides the same
therefor
L=W=x for max area
40=x+x
40=2x
divide 2
20=x
max area =legnth times width=20^2=400
note: all squares are rectangles, but not all rectangles are squares
L=40-x
A=(40-x)(x)
max area=400 cm^2
The answer would be 8.51m if you add all together
Answer:
Option D is the answer.
Step-by-step explanation:
As we know there are two types of muscles, Voluntary and involuntary muscles.
Voluntary muscles are the muscles which we can control while involuntary muscles can not be controlled .
Examples of involuntary muscles are Smooth muscles present in GUT, blood vessels and cardiac muscles.
Examples of voluntary muscles are skeletal muscles like facial muscles.
Therefore, Option D, making of faces involves voluntary muscle movement.
Step-by-step explanation:
Because the number seven is higher than one Third.
It is not terminating because 36 is a multiple of 3. Any number that is a multiple of three is repeating!