A = 11×6 = 66cm2

B = 2(11×7)

= 2(77)

= 154cm2

D = 2(21 x 5)

= 2(105)

= 210cm2

E = 15×11

 = 165cm2

F = 11×21

= 231 cm2

G = 5×11

= 55cm2

H = 2(7×6)

 = 2(42)

 = 84cm2

66+154+55+210+165+231+55+84

= 936cm2

Today in math class, I learned how to find the surface area of an irregular shape. For two different shapes that are stacked on top of each other, I learned not to include the bottom of the area of the shape (the overlap) when finding surface area.

 

 Surface Area and Volume      

Surface Area and Volume: 

The difference between surface area and volume is that surface area is the sum of areas of all the faces of a shape/solid figure and is measured in square units and volume is the number of cubic units that make up a solid figure. Surface area measures around the solid object and volume measures how much is inside the object.