Traditional 1/2 * base * height
Heron’s formula (it’s quite lengthy so search it up)
Hope this helped you :)
The answer is definitely 7xf
Answer:

Step-by-step explanation:
Given


Required
Find the measure of a
Since there is no diagram to support the question, we'll assume that:

This gives:

Subtract 22 from both sides



Answer:
(-1,0)
Step-by-step explanation:
Look to see which points have the same x value (in this case -1)