What is the perimeter of square efgh, shown?

a. 14.1
b. 28.3
c. 34.6
d. 17.3

The perimeter of square EFGH is 28.28 units

Step-by-step explanation:

Given in the figure as :

EFGH is a square with points E,F,G,H

∵  The measure of each points from center o is same

I.e OE = OF = OG = OH = 5 units

Now, From any of two length from center o , we can measure the length of each side .

So, (OG)² + (OF)² = (GF)²

Or, (5)² + (5)² = (GF)²

Or,   25 + 25  = (GF)²

Or,     (GF)²  = 50

∴       GF =  5  unit

Similarly each side EF, GH , EH have same length

Now, As The perimeter of square = 4 × side

So,          The perimeter of square = 4 × ( 5 )

Or,          The perimeter of square = 20 × ( ) = 28.28 unit

Hence The perimeter of square EFGH is 28.28 units   Answer

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.