3. Suppose AABC SA EFG, and EG = 7x-11, AB = 5x -9, GF = 3x -1, and AC = 2x + 4. Find the value of x and the lengths of the sides of A EFG.
Part I: Sketch the triangles below.(3 points)
Part II: Use measures for AC and EG to find the value of x. Show your work.
(2 points)
Part III: Find the lengths of the sides of A EFG. Show your work.
(6 points, 2 points for each side)

step-by-step explanation:

1

c=x-39/5

x=39/5+c

step-by-step explanation:

the cross section of an object is the shape you get when you cut straight through an object.

thus the cross section of the human hair is a circle. hence the cross sectional area is the area of a circle and area of circle is :

a = 3.14 × r²

we are given that the average width of human hair is = 4 × (1 / 10³) cm.

so the diameter of the circle is = 4 × (1 / 10³) cm.

∴ radius r = (diameter/2) = 2 × (1/10³) cm

now area a = 3.14 × (2 × (1/10³))² cm²

scientific notation is a standard way of writing very large and very small numbers so that they’re easier to both compare and use in computations. to write in scientific notation, follow the form

n × 10 ᵃ

where n is a number between 1 and 10, but not 10 itself, and a is an integer (positive or negative number).

so area can be rewritten in scientific notation as :

⇒ 3.14 × 4 × (1/10⁶)

⇒ 12.56 × 10 ⁻⁶ cm²

⇒1.256 × 10⁻⁷ cm²