The diagram is not drawn to scale

3060 cm^2

Step-by-step explanation:

First, let's find the areas of the trapezoids.

Next, let's find the area of the bases (the top rectangle and bottom rectangle).

After that, we find the surface area of the side rectangles.

Lastly, we add 1260, 1200, and 300 together.

Therefore, the surface area should be 3060 cm^2.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13