It gets you closer to your answer.
Ex: 11×2-- Round 11 to 10 and then multiply and get 20. But if you get some answer like 50, you know it is wrong. But the answer is 23
No, this is because right angles can also be formed
Answer:
5p9
Step-by-step explanation:
Length A is (8,0) and the length of B is (0,6)