Answer:

Step-by-step explanation:
If a, b, c are three sides of the triangle, then

In your case, two sides have measures of 4 units and 8 units, then

Hence,

Therefore,

I am stuck on this too...
Maybe we can figure it out together
Answer:

Step-by-step explanation:
Switch Sides

Subtract 2 From Both Sides

Simplify

Multiply Both Sides By -6

Simplify

Answer:
Step-by-step explanation:
According to the trapezoid area formula, the area of a trapezoid is equal to half the product of the height and the sum of the two bases. Area = ½ x (Sum of parallel sides) x (perpendicular distance between the parallel sides). Where, h is the height and b1 and b2 are the parallel sides of the trapezoid.