What information would allow you to identify angle BFA and angle AFE as complementary angles?
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ANSWER
EXPLANATION
The given line has equation;
The slope of this line is
-4
The given line is parallel to this line so it has the same slope:
The equation of this line is in the form:
We substitute the slope and the point:
(3,6)
Let us assume base of the window = b feet.
Height is 3 feet less than base, that is = (b-3).
Given area of the triangle = 20 feet square.
We know formula for area of a triangle:
Area = × Base × Height
Plugging values in formula, we get
20 =
Factoring quadratic, we get
=0
b+5=0
b=-5
b-8=0
b=8.
For base we can take only positive value.
<h3>Therefore, base of the triangle = 8 feet and height = 8 -3 = 5 feet.</h3>