we will segment the sqaure in the shape into the following
full square,
0.75
0.5
0.25
full square = 68
0.75 = 18 x 0.75 = 13.5
0.5 = 5 x 0.5 = 2.5
0.25 = 17 x 0.25 = 4.25
to get the area of figure, we will add up the values that we have gotten
so,
Area of the figure = 68 + 13.5 + 2.5 + 4.25
Area of the figure = 88.25 square meter
X divided by two is 5
So you multiply 5 and 2 to get 10. Therefore x equals 10
The answer is 2 and over it is 3
AB = sqrt(10^2 - 4^2) = sqrt(100 - 16) = sqrt(84) = sqrt(4 x 21) = 2sqrt(21) = 2 radical 21.