Answer:
Surface Area = 1,236 cm ^2
Step-by-step explanation:
By examining the solid figure we find out:
1) There are 2 triangles
2) 2 Large rectangles
3) 1 small rectangle
Part 1:
First, find area of the two triangles
One triangle's area is: 10 * 18 / 2 which gives us 90
Since there are two triangles, 90 * 2 = 180 cm ^2
Part 2:
Next, find area of the 2 large rectangles
One rectangle's area is: 24 * 17 which gives us 408
Since there are two rectangles, 408 * 2 = 816 cm ^2
Part 3:
Going on, find the area of the small rectangle
The rectangle's area is: 24 * 10 = 240 cm ^2
Part 4:
Lastly, add up all the areas together.
180 + 816 + 240 = 1,236 cm ^2
Finally, we get the answer.
