Answer:
Step-by-step explanation:
From the given figure, it can be seen that 
, thus ΔABC is an isosceles triangle.
Therefore,
⇒
Solving the above equation, we get
⇒
⇒
⇒
Now, substituting the value of x in AC, we have
⇒
⇒
⇒
⇒
Thus, the length of the side AC of the given triangle is 25 units.
Answer:
16.19
Step-by-step explanation:
Use the cosine rule:
They can be equal if the absolute value of b is 1.
Crosses x axis at (5,0) and slope -⅔. plug in to point slope formula to get
y=-⅔x-10/3
The answer to this problem is C.
Here's why:
The area of a triangle = 1/2 * (base) * (height) (Note: a triangle is half of a rectangle, and rectangles have Area = (base) * (height))
<span>Because the base of ΔAED is half of ΔACB (2 = (1/2) * 4), and height of ΔAED is half of ΔACB (3 = (1/2) * 6), we know that the area of ΔAED will be half of ΔAED.
</span>
So, it's C. I am sure =)
If it helped you, please mark me brainliest! =D
Have a nice day!
