80*4=320-(71+80+86)=83 So 83 needs to be added.
Answer:
45.5
Step-by-step explanation:
Use pyth theorem to find the whole bottom side. Then sub 16 by 13. # is the small segmented area. The small segmented tri is 10.5 area. The big tri is 56. Sub 10.5 from 56 to get 45.5.
Answer:
2 1/3
Step-by-step explanation:
You take the first number them multiply then divide