31.4/3.14=10
10/2=5
5*5*3.14= 78.5 cm square
If four coordinates are given then:-
- Find length of the sides using distance formula
- Now break down into two triangles .
- Use herons formula and find areas of the triangles .add them and get the area
Answer:
Step-by-step explanation:
IDK i just really hate it how you get only a limit of answers for free for one day.
Answer:
(x - 8)² + (y - 4)² = 9
Step-by-step explanation:
(x - 8)² + (y - 4)² = 3²
(x - 8)² + (y - 4)² = 9
Answer:
fourth number is 9
Step-by-step explanation:
let 'x' equal the fourth number
(5+7+7+x)/4 = 7
cross-multiply to get:
19 + x = 28
x = 9
