Answer:
9. 30/6
10. 7.6 and u
Step-by-step explanation:
Is -1-2-3-4-5-6= - (1+2+3+4+5+6)=-21
It is an arithmetic sum
If the radius of the circle is 1, its area is π*1^2 = π units^2.
If the radius of the circle is 1, the side length of the square is √2 and its area is (√2)^2 = 2.
The ratio of square area to circle area is 2/π ≈ 63.7%.
200kg I think being serious