All categories

3 years ago

The lateral surface area of a cube is 400cm². Its total surface area is

Mathematics

2 answers:

OLga [1]3 years ago

8 0

Answer:

Step-by-step explanation:

Lateral surface area of cube = 4a²

4a² = 400

a² = 400÷4

a² = 100

a = √100 = √10*10

a = 10 cm

Total surface area = 6a²

= 6 * 10²

= 6* 100

= 600 cm²

Nina [5.8K]3 years ago

3 0

Answer:

Step-by-step explanation:

I believe that I did this before.

You might be interested in

Can someone plz help me with this

Rom4ik [11]

Answer:

I'll help out a bit:

Step-by-step explanation:

So ANY number in a square root is irrational(Non-terminating and no pattern)

Pi is also irrational

But ANY number that can be expressed as a fraction is rational(Also Whole numbers, natural numbers, etc.)

Hope this helps!

7 0

3 years ago

220 meters = ________ centimeters

Vika [28.1K]

Answer:

220 meters=22000 centimeters

Step-by-step explanation:

Hope this helps!!! :)

8 0

3 years ago

Read 2 more answers

One fourth multiplied by four

podryga [215]

Answer:

Step-by-step explanation:

$\frac{1}{4} \times 4 = 1$

8 0

3 years ago

Read 2 more answers

While at a craft fair, Colleen found a stand selling bars of homemade soap for 3$ each. She liked so many of the different scent

earnstyle [38]

Answer:
3x > 18

step-by-step explanation:
3x > 18

3 0

3 years ago

Workers in an office of 40 staff were asked their favourite take away. the results are summarised in the table.

tia_tia [17]

Answer:

Pizza: 27°

Curry: 108°

Fish and Chips: 63°

Kabab: 27°

Other: 135°

Step-by-step explanation:

Frequency 40 = 360°

Pizza (3) = $\frac{3}{40}$ * 360° = 27°

Curry (12) = $\frac{12}{40}$ * 360° = 108°

Fish and Chips (7) = $\frac{7}{40}$ * 360° = 63°

Kabab (3) = $\frac{3}{40}$ * 360° = 27°

Other (15) = $\frac{15}{40}$ * 360° = 135°

27 + 108 + 63 + 27 + 135 = 360

4 0

2 years ago