Answer:
84.85cm
Step-by-step explanation:
Let the sides of the square be x
The perimeter of the square = 4x
Get x using the pythagoras theorem
x^2 + x^2 = 30^2
2x^2 = 900
x^2 = 450
x = 21.21cm
Perimeter of the plate = 4(21.21)
Perimeter of the plate = 84.85cm
It would be written out as "number eight".
Answer:
Step-by-step explanation:
first you multiply 45 by .40 you multiply by .40 because that is the percent increase.
45*.40=18
then you just add the 18 to 45 which get you 63.
answer:40%
maybe 28 is the answer...
