Cuboid has a length 13cm width 9cm and height 8cm calculate the surface area
Cuboid has a length 13cm width 9cm and height 8cm calculate the surface area
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A cuboid has a length 13cm, width 9cm and height 8cm calculate it surface area
SA = 2lw + 2 lh + 2 wh
plug in ....
Surface area = 2xy +2xz + 2yz
S.A = 586cm²
To calculate the surface area of a cuboid, you need to find the area of each individual face and then add them all together.
A cuboid has six faces: a top and bottom face, front and back faces, and two side faces.
Let's calculate the surface area step by step:
1. Top and bottom face:
The area of the top and bottom faces is the same since the cuboid is rectangular. Therefore, we can calculate the area of one face and multiply it by 2.
Area of one face = length * width
Area of top and bottom faces = (length * width) * 2
In this case, the length is 13cm and the width is 9cm. So the area of one face is:
Area of one face = 13cm * 9cm
2. Front and back faces:
The area of the front and back faces is calculated as the product of the length and height.
Area of one face = length * height
Area of front and back faces = (length * height) * 2
Here, the length is 13cm and the height is 8cm. So the area of one face is:
Area of one face = 13cm * 8cm
3. Side faces:
The area of the side faces is calculated as the product of the width and height.
Area of one face = width * height
Area of side faces = (width * height) * 2
In our case, the width is 9cm and the height is 8cm. So the area of one face is:
Area of one face = 9cm * 8cm
Finally, add up all the areas calculated:
Surface area = (Area of top and bottom faces) + (Area of front and back faces) + (Area of side faces)
You can substitute the values we calculated earlier to get the final surface area of the cuboid.
Surface area 2× 22/7×r( h+ r)
2 ×22/7×9(8+9)
2 × 22/7 ×9+(17)
2 × 22/7 ×153 =961.7