Shade 1/3 of this pie
2 answers:
Make a circle and use a ruler to make three straight lines from the center of the circle like the first picture. Then shade in one of the three parts and you'll get something like the 2nd picture. Hope this helps and remember to mark as the brainliest answer! :)
A trick to shading pies is draw a circle look at the denominator and look at the denominator and that shows what you have to split the circle into. The numerator is the number that shows you to shade.
A trick to shading pies is draw a circle look at the denominator and look at the denominator and that shows what you have to split the circle into. The numerator is the number that shows you to shade.
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Answer:
Length of the rectangle is 15.0325 km and width is 0.3765 km.
Explanation:
Given:
Perimeter of a rectangle = 30.8 km
Length of diagonal of rectangle = 11 km
To find:
The length and width of rectangle=?
Solution:
Lets assume length of the rectangle = x km
And assume width of the rectangle = y km
Lets first create equation using given perimeter
perimeter of rectangle = 2 ( length + width )
=> 30.8 km = 2 ( x + y )
=>
=> y = 15.4 – x ------(1)
As diagonal and two sides of rectangle forms right angle triangle whose hypoteneus is diagonal ,
=>
=>
=>
On substituting value of y from (1) in above equation we get
=>
=>
=>
=>
Solving above quadratic equation using quadratic formula
General form of quadratic equation is
And quadratic formula for getting roots of quadratic equation is
As equation is , in our case
a = 2 , b = -30.8 and c = 116.16
Calculating roots of the equation we get
=> x = 15.0325 or x = 0.3675
As generally length is longer one ,
So x = 1.0325
From equation (1) y = 15.4 – x = 0.3765
Hence length of the rectangle is 15.0325 km and width is 0.3765 km.