Create a set of coordinates to model a relation that is a linear function.
2 answers:
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AC=x, BC=x√3, AB is a hypotenuse (look at the pic below)
x√3>x, consequently ∠B<∠A and we have to find cosB, which is (x√3)/AB.
<em>Let's find AB:</em>
AB=√(x²+(x√3)²)=√(x²+3x²)=√(4x²)=2x
<em>Thus, cosB is:</em>
cosB=(x√3)/(2x)=√3/2
x√3>x, consequently ∠B<∠A and we have to find cosB, which is (x√3)/AB.
<em>Let's find AB:</em>
AB=√(x²+(x√3)²)=√(x²+3x²)=√(4x²)=2x
<em>Thus, cosB is:</em>
cosB=(x√3)/(2x)=√3/2
Answer:
209 cm²
Step-by-step explanation:
This composite figure consist of two figures.
(1) Rectangle with length = 11 cm and width = 16 cm.
(2) Triangle on the top of the rectangle with base = 11 cm and height = 6 cm.
Area of the rectangle = length × width
= 11 × 16
= 176 cm²
Area of the triangle =
=
= 33 cm²
Total area = 176 + 33
= 209 cm²
Correct question:
Determine the area of a triangle with A=27.8° B = 107.3° c=4
Answer:
Area of the triangle is 5.04 units²
Step-by-step explanation:
Given;
A = 27.8°
B = 107.3°
C = 180 - (27.8 + 107.3) = 44.9°
c = 4
Now, we determine the remaining two sides of the triangle using sine rule
Apply Hero's formula;
Therefore, area of the triangle is 5.04 units²