Answer:
Surface Area of the juice box = 269.6 cm²
Step-by-step explanation:
The dimensions of the box in shape of rectangular prism is given by :
6.4 cm × 4 cm × 10.5 cm
⇒ Length = 6.4 cm
Width = 4 cm
Height = 10.5 cm
Surface Area of rectangular prism is given by the formula = 2(wl + hl + hw) ,where w = width, h = height and l = length
⇒ Area of rectangular prism shaped box = 2(4×6.4 + 10.5×6.4 + 10.5×4)
= 2(25.6 + 67.2 + 42)
= 2 × 134.8
= 269.6 square cm
Hence, Surface Area of the juice box = 269.6 cm²
Therefore, The correct option is D. 269.6
Answer
Surface Area of the juice box = 269.6 cm²
The dimensions of the box in shape of rectangular prism is given by :
6.4 cm × 4 cm × 10.5 cm
⇒ Length = 6.4 cm
Width = 4 cm
Height = 10.5 cm
Surface Area of rectangular prism is given by the formula = 2(wl + hl + hw) ,where w = width, h = height and l = length
⇒ Area of rectangular prism shaped box = 2(4×6.4 + 10.5×6.4 + 10.5×4)
= 2(25.6 + 67.2 + 42)
= 2 × 134.8
= 269.6 square cm
Hence, Surface Area of the juice box = 269.6 cm²
Therefore, The correct option is D. 269.6
7=42
6=30
5=20
3=?