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Yuki888 [10]
3 years ago
15

The surface area of a triangle pyramid is 1,936mm2. If the dimensions are multiplied by 1/4 what will be the new surface area?

Mathematics
1 answer:
Mumz [18]3 years ago
4 0

Answer:

The new surface area will be 121\ mm^{2}

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

In this problem

The scale factor is \frac{1}{4}

so

Multiply the scale factor squared by the original surface area to obtain the new surface area

(\frac{1}{4})^{2}*1,936=121\ mm^{2}

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OLEGan [10]

Answer:

PQ = 3.58, and RQ = 10.4

Step-by-step explanation:

We are given the hypotenuse of the triangle, and an angle. Use sin and cos to solve.  

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For RQ, this is the side adjacent to the angle, so use cos,

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   11(Cos 19) = x

        10.4 = x        (rounded to the nearest hundredth)        

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3 years ago
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Step-by-step explanation:

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Anna11 [10]

Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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