ANSWER:
[i] 4 × 10.56 = 42.2
[ii] 5 × 0.432 = 2.16 (not 2.18)
So, <u>Correct choice</u> - [B]
The standard equation of a circle with centre (xc,yc) and radius R is given by

Substituting
centre (xc,yc) = (4,-3)
R=2.5
The equation is therefore



or
(x-4)^2+(y+3)^2=6.25
Answer:
the pics too small I cant read itttt
Step-by-step explanation:
make it bigger and I can do ittt
Answer:
10
or 14.14 appromiximately
Step-by-step explanation:
Area of square = 100
So length on side = 10 because all sides of square equal.
Length of Diagonal = Side x 
So the length of diagonal is 14.14 approximately