The quadrilateral ABCD is an isosceles trapezoid, and the length of AC for the quadrilateral is 19 feet
<h3>How to determine the
length of AC?</h3>
The quadrilateral ABCD is an isosceles trapezoid
This means that:
- Opposite sides are equal
- The diagonals are also equal
From the above highlights, we have:
AC = 7ft + 12ft
Evaluate the sum
AC = 19 ft
Hence, the length of AC for the quadrilateral is 19 feet
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Read more about quadrilaterals at:
brainly.com/question/5715879
The distance formula between the line is:

Thus,the distance of the above:

The answer is 6.4 units.
Hope it helps!
Answer:
66
Step-by-step explanation:
55+59 =114
180-114=66
Answer: 4b(b-2)
Step-by-step explanation: The terms 4b^2 and -8b have two things in common: they are multiples of 4 and both have at least one b. Therefore, you can pull it out of the polynomial. This would give you 4b(b-2).
Answer:

Step-by-step explanation:
Notice that all three sides of the given triangle has one tick mark.
This means that all three sides are congruent, meaning that we have an equilateral triangle.
And for equilateral triangles, all three angles are also congruent.
So:

Also, recall that the interior angles of a triangle is always 180. Thus:

Substitute:

Combine like terms:

Substitute:

Multiply:

Thus:

And we are done!