The measure of central angle QRS is 8pi/9 radians. What is the area of the shaded sector?
1 answer:
The area of the shaded sector must be 144π units².
<h3>What is the area of the circle?</h3>The area of the circle is defined as the product of the pie and the square of the radius.
The area of the circle =
We know that the angle measurement of central angle QRS is less than π radians.
for r = 18 units
The area of the circle = π18² = 324π units²
The area of the half of a circle = 324π /2 = 162π units²
The area of a quarter of a circle = 324π /4 = 81π units²
so
The area of the shaded sector < 162π units²
and
The area of the shaded sector > 81π units²
Hence the answer must be 144π units²
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Answer:
A <em> </em><em>and</em><em> </em><em>E</em><em> </em><em>is</em><em> </em><em>true</em><em>. </em><em>BCD</em><em> </em><em>is</em><em> </em><em>False</em>
Step-by-step explanation:
Let convert this into slope intercept form
So now let answer these questions,
A is TRUE the slope is the number in front of the x value. It is 20 so a is true.
B is False, Using (0, 500) The equation is wrong
C is false, we have a positive slope so it shifts upward from left to right.
D is false
the slope isn't 200.
E Is true the y intercept is when the x value is 0, what is the y value so plug it in we get
It equal 50.