Question

(i) Find the total surface area of a cube whose volume is 1331 cm^2?


full and please​

Answer 1

EXPLANATION.

Volume = 1331 cm².

As we know that,

Formula of :

Volume of cube = a³.

⇒ a³ = 1331.

⇒ a³ = 11 x 11 x 11.

⇒ a³ = (11)³.

⇒ a = 11 cm.

Surface area of a cube = 6a².

⇒ 6 x (11)².

⇒ 6 x 121 = 726 cm².

Total surface area of cube = 726 cm².

                                                                                                                   

MORE INFORMATION.

(1) Volume of cube = a³.

(2) Volume of cuboid = L x B x H.

(3) Volume of cylinder = πr²h.

(4) Volume of cube = 1/3πr²h.

(5) Volume of hemisphere = 2/3πr³.

(6) Volume of sphere = 4/3πr³.

Answer 2

Step-by-step explanation:

given :

• surface area of a cube

• volume is 1331 cm^2

to find :

• area of a cube whose volume is 1331 cm^2 = ?

solution :

first we will write formula :

Volume of cube = a³

• cube area = 1331

• cube area = 11× 11× 11

• cube area = (11)3

• cube area = 11

area suface formula = 6a

• area surface = 6 × (11)

• area surface = 6 × 121 = 726

• area surface = 726

learn more :

all formula :

• volume cube formula = Length of edge)3

surface cube formula = 6 (side)

volume sphere formula = (4/3)

surface sphere formula = 4 pi (r)

• volume cylinder formula = pi ( r) × h

surface cylinder formula = 2 pir (r+h)

• volume prism formula = area base × height

surface prism formula = PH + 2B

• volume cuboid formula = length ×
• width× height

surface cuboid formula = 2(lb+bh+hl)