Area of shaded part = area of circle - area of the square
= pi (6)^2 - area of the square.
Area of square = (m of one side) ^2
measure of of side is found as follows:-
6^2 = 2s^2 where m of the side = 2s
s = sqrt 18 so side of square = 2 sqrt18
area of square = (2 sqrt18)^2 = 4*18 = 72
area of shaded region = 36pi - 72 = 41.1 sq units to neraest tenth
Answer:
<em>213,645.6cm³ </em>
Step-by-step explanation:
Area of a cylinder is expressed as;
V = πr²h
r is the radius = 2cm
h is the height = 70cm
Get the volume of one rod;
V = πr²h
V = (3.14)(2)²(70)
V = (3.14)(4)(70)
V = 879.2cm³
one steel = 879.2cm³
243 rods = x
Cross multiply;
x = 879.2 * 243
<em>x = 213,645.6</em>
<em>The company will need 213,645.6cm³ volume of steel to make 243 rods</em>
Sure :)
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Answer:
Step-by-step explanation:
Given equation:
Multiply both sides by (x - 1):
Expand the brackets:
Add r to both sides:
Divide both sides by r:
