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Semmy [17]
3 years ago
7

Diego measured the length of a pen to be 22 cm.

Mathematics
2 answers:
nikklg [1K]3 years ago
5 0
4.5!!! Oh and also good luck
solmaris [256]3 years ago
4 0

Answer:

<em>4.5%</em>

Step-by-step explanation:

From the question, we are informed that Diego measured the length of a pen to be 22 cm while the actual length of the pen is 23 cm.

The percentage decrease:

= (23 - 22)/22 × 100

= 1/22 × 100

= <em>4.5%</em>

good luck :)

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Answer:

See below.

Step-by-step explanation:

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We need to prove that the 2 triangles formed by the median are congruent.

If the 2 triangles are ABD  and ACD  where BD is the median and < ABC is the angle from which BD is drawn.

BD = BD  ( the common side)

AD = DC ( because BD is the median).

AB =  AC ( because ABC is  an isosceles triangle).

So Triangles ABD and ACD are congruent by SSS.

Therefore  m < ABD = m <  CBD,  so BD is the bisector of < ABC.

To prove BD is also the altitude:

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3 years ago
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4 0
3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

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Hello!

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3 years ago
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