The V180 falls between which two whole numbers?
11 and 12
12 and 13
13 and 14
14 and 15

Between 13 and 14 (C)

Step-by-step explanation:

11² = 11 × 11 = 121

12² = 12 × 12 = 144

13² = 13 × 13 = 169

14² = 14 × 14 = 196

15² = 15 × 15 = 225

180 is between 169 & 196

= √180 is between √169 & √196

= √180 is betwwen 13 & 14

So, √180 falls between numbers 13 and 14 (C)

Hope it helpful and useful :)

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2