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3 years ago

What is the surface of a cubiod sides 2cm,3cm and 5cm?

Mathematics

2 answers:

FromTheMoon [43]3 years ago

8 0

Step-by-step explanation:

2×3×2+2×5×2+3×5×2

12+20+30

=62

mamaluj [8]3 years ago

3 0

Answer: A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Step-by-step explanation:

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Add 4 to the sum of K and 8

Katarina [22]

Answer:

12 can u pls give me brainliest so i can lvl up

Step-by-step explanation:

5 0

2 years ago

Find the area of the shaded region. Round the the nearest tenth.

Brums [2.3K]

Answer:

226.084 sq.m.

Step-by-step explanation:

Radius of circle = 18.6 cm

Area of sector = $\frac{\theta}{360^{\circ} }\pi r^2$

Area of sector = $\frac{123}{360} \times 3.14 \times (18.6)^2$

Area of sector = $371.157 m^2$

Area of triangle = $\frac{1}{2} \times a \times b \times Sin x$

a = OA = radius = 18.6 cm

b = OB = radius = 18.6 cm

x =123 °

Substitute the values in the formula

Area of triangle = $\frac{1}{2} \times 18.6 \times 18.6 \times Sin 123$

Area of triangle = $145.073 m^2$

So, Area of shaded region = Area of sector - Area of triangle

= $371.157 m^2-145.073 m^2$

= $226.084 m^2$

Hence the area of the shaded region is 226.084 sq.m.

5 0

3 years ago

Which of the following statements are true ? Check all that apply

Elden [556K]

Answer:

Options A) and E)

Step-by-step explanation:

If you use Ruffini's method for polynomials, you can find the roots.

The given picture shows us the first root of the polynomial $5x^{2}-16x+12=0$ wich is 2.

Thus, the original polynomial can be written as

$(x-2)*(5x-6)=0$

Here, you can notice that (x-2) is a factor

3 0

2 years ago

1 Negative numbers do not need the<br>negative sign (-) in front of them.<br>O True<br>O False

katrin [286]

Answer:

The answer is False

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

The sales tax in your city is 8.8%, point, 8, percent, and an item costs $63$, before tax.

PIT_PIT [208]

You would pay $5.54 on that item.

Step-by-step explanation:

Given,

Cost of item = $63

Sales tax rate = 8.8%

Amount of sales tax = 8.8% of cost of item

Amount of sales tax = $\frac{8.8}{100}*63$

Amount of sales tax = $\frac{554.4}{100}$

Amount of sales tax = $5.54

You would pay $5.54 on that item.

Keywords: percentage, division

Learn more about percentages at:

#LearnwithBrainly

8 0

3 years ago