5Q1_L22_SURFACE AREA OF CUBE AND CUBOID

"Diện tích xung quanh" là:

• Lateral area

• Surface area

• Lateral surface area

• Total surface area

"Diện tích toàn phần" là:

• Lateral area

• Total area

• Lateral surface area

• Total surface area

How many faces are there in a cube?

• 4

• 5

• 6

• 7

How many edges are there in a cuboid?

• 10

• 8

• 12

• 16

Choose the correct formula of

LATERAL SURFACE AREA OF A CUBE

• 2 x a x b + 2 x b x c + 2 x a x c

• 4 x a x a

• 6 x a x a

Choose the correct formula of

TOTAL SURFACE AREA OF A CUBOID

• 2 x a x b + 2 x b x c + 2 x a x c

• 2 x a x b

• 2 x (a + b) x c

Choose the correct formula of

LATERAL SURFACE AREA OF A CUBOID

• 2 x a x b + 2 x b x c + 2 x a x c

• 2 x a x b

• 2 x (a + b) x c

Find the lateral surface area of this cube

• 216 $cm^2$

• 144 $cm^2$

• 36 $cm^2$

• 24 $cm^2$

Find the total surface area of this cuboid

• 416 $cm^2$

•  $461\ cm^2$ 

• 542  $cm^2$

• 552  $cm^2$