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2 years ago

Help plzzzzzzzzzzzzzzz

Mathematics

1 answer:

Helga [31]2 years ago

4 0

Answer: 3173 mm² (Answer C)

Area of the bottom triangle = 1/2 x base x height
Area of the bottom triangle = 1/2 x 19 x 23 = 218.5mm²

Area of the top triangle = area of the bottom triangle
Area of the top triangle = 218.5mm²

Area of the 3 side rectangles = (23 x 38) + (19 x 38) + (30 x 38)
Area of the 3 side rectangles = 2736 mm²

Total Surface area = 218.5 + 218.5 + 2736 = 3173 mm²

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Answer: Total Surface area = 3173 mm²
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Ivenika [448]

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Step-by-step explanation: I am guessing you meant ...99 + 2(8*3)...

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3 years ago

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2 years ago

The rectangle below has an area of 1 8 x 3 18x 3 square meters and a length of 2 x 2 2x 2 meters.

motikmotik

Answer:

$\text{The width of rectangle}=9x\text{ meters}$

Step-by-step explanation:

We have been given that the rectangle has an area of $18x^3$ square meters and a length of $2x^{2}$ . We are asked to find the width of rectangle.

Since we know that area of a rectangle is width times length of the rectangle, so we can find width of our given rectangle by dividing given area by length of rectangle.

$\text{Area of rectangle}=\text{Width of rectangle *Length of the rectangle}$

$\frac{\text{Area of rectangle}}{\text{Length of rectangle}}=\frac{\text{Width of rectangle *Length of the rectangle}}{\text{Legth of rectangle}}$

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Upon substituting our given values in above formula we will get,

$\text{The width of rectangle}=\frac{18x^3\text{ meter}^2}{2x^2\text{ meters}}$

$\text{The width of rectangle}=\frac{9x^3\text{ meters}}{x^2}$

Using exponent rule for quotient $\frac{a^m}{a^n}=a^{m-n}$ we will get,

$\text{The width of rectangle}=9x^{3-2}\text{ meters}$

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2 years ago

A carpenter designs two cabinets: one in the shape of an oblique rectangular prism and one in the shape of a right

natulia [17]

Answer:

The cabinets have the same base area.
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The cabinets may have different base dimensions.

Step-by-step explanation:

The volume of a prism is the product of its base area and height. It doesn't matter whether the prism is right or oblique, and the shape of the base is immaterial.

Both the given prisms have the same volume and height, so their base areas must be the same. The dimensions of the base may be the same, but do not have to be the same.

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3 years ago

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Thank you for the help!

horrorfan [7]

Answer:

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Step-by-step explanation:

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