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3 years ago

12

Proofs with transformations

1 answer:

nekit [7.7K]3 years ago

4 0

I don't really understand the question or else I would help

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jonny [76]

Since it is a cube, all sides lengths are the same.

Surface area = 2lw+2lw+2hw
if you substitute all the sides for 13 you get
2(169) three times
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its messy to explain so i attached a photo

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2 years ago

Calculate the probability of flipping a coin 20 times and getting 4 heads. Round your answer to the nearest ten thousandth.

lorasvet [3.4K]

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Step-by-step explanation:

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3 years ago

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vitfil [10]

Answer:

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Step-by-step explanation:

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3 years ago

A pair of vertical angles have measures (2z+43)° and (−10z+25)° .<br><br> What is the value of z?

Alexxx [7]

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3 years ago

Given a triangle MTN, prove that

cupoosta [38]

Answer:

<em></em> $\angle m + \angle t + \angle n = 180$ <em></em>

<em></em>

Step-by-step explanation:

Required

Show that:

$\angle m + \angle t + \angle n = 180^o$

To make the proof easier, I've added a screenshot of the triangle.

We make use of alternate angles to complete the proof.

In the attached triangle, the two angles beside $\angle m$ are alternate to $\angle t$ and $\angle n$

i.e.

$\angle 1 = \angle t$

$\angle 2 = \angle n$

Using angle on a straight line theorem, we have:

$\angle 1 + \angle m + \angle 2 = 180$

Substitute values for (1) and (2)

$\angle t + \angle m + \angle n = 180$

Rewrite as:

<em></em> $\angle m + \angle t + \angle n = 180$ <em> -- proved</em>

5 0

3 years ago