Surface Area.

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Presentation transcript:

Surface Area

What is the SURFACE AREA of this figure?

What is the SURFACE AREA of this figure? First Draw the NET

After you draw the NET. Put dimensions on the sides top side After you draw the NET. Put dimensions on the sides back side bottom front

7cm 5cm top side 2cm back 2cm side bottom 5cm front 7cm

Find the AREA of each rectangle

Find the AREA of each rectangle 35 cm2 10 cm2 14 cm2 35 cm2 10 cm2 14 cm2

Add all the AREAs to find the SURFACE AREA 35 cm2 10 cm2 14 cm2 35 cm2 10 cm2 14 cm2

Add all the AREAs to find the SURFACE AREA 118 cm2 35 cm2 10 cm2 14 cm2 35 cm2 10 cm2 14 cm2

What is the SURFACE AREA of this figure?

What is the SURFACE AREA of this figure? First Draw the NET

8 in 8 in 8 in 8 in

Find the AREA of each square

Find the AREA of each square

All cubes will have 6 squares EXACTLY the same. 8 in 64 in2 SA = 384 in2 8 in 8 in 64 in2 64 in2 64 in2 64 in2 8 in 64 in2

What is the SURFACE AREA of this figure?

What is the SURFACE AREA of this figure? First Draw the NET

Now find the AREA of each figure 2 triangles 3 rectangles

150 cm2 180 cm2 48 cm2 48 cm2 150 cm2

150 cm2 SA = 576 cm2 180 cm2 48 cm2 48 cm2 150 cm2

What is the SURFACE AREA of this figure?

What is the SURFACE AREA of this figure? First Draw the NET

Now find the AREA of each figure 4 triangles 1 square

7.5cm2 7.5cm2 9cm2 7.5cm2 7.5cm2

7.5cm2 7.5cm2 SA = 39 cm2 9cm2 7.5cm2 7.5cm2

What is the SURFACE AREA of this figure?

What is the SURFACE AREA of this figure? First Draw the NET

Now find the AREA of each figure 4 triangles (3 are the equal)

60 cm2 60 cm2 40 cm2 60 cm2

60 cm2 60 cm2 40 cm2 SA = 220 cm2 60 cm2

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together SA = 348mm2

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together SA = 96mm2

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together SA = 180mm2

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together SA = 96mm2

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together

What is the SURFACE AREA of this figure? #1 Draw net #2 put dimension on net #3 Find AREA of each figure #4 Add all the Areas together SA = 95 mm2