Help pls Brainliest to the first right answer

164 sq. meters

Step-by-step explanation:

first two columns are both 5 by 8 m so 5 * 8 = 40.

To find the top part, you do 15 - 8 to find the remaining portion on top. Multiply that with 12 to get 84.

164 sq. meters.

Step-by-step explanation:

area of big square minus area of small square

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.