Answer:
-3
Step-by-step explanation:
3+x=0
subtract 3 from 3, 0
subtract 3 from 0, -3
It depends on what was added. If an ADDEND was 0 then it would be identity property of addition, which states that if 0 is added to a number, the number would stay the same. If the SUM was 0, then it would be inverse property of addition, which states that a number plus it's opposite equals 0.
Answer:
the length is 18.4
Step-by-step explanation:
If the triangle were to be a square, it would be 20 by 20. 20 × 20 is 400. To find the triangle divide by 2. 400 ÷ 2 = 200. The area of the triangle is 200.
