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3 years ago

9

Use the compass to construct a segment on CD that is congruent to the segment AB.

1 answer:

Aleonysh [2.5K]3 years ago

4 0

1. Use a straightedge to draw CD so it is longer than AB.
2. Place the steel tip of the compass at A and the writing tip at B.
3. Keep the same setting on the compass and place the steel tip at C. Draw an arc that intersects CD. Name this point D.
Now they are congruent.

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2 years ago

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lisabon 2012 [21]

ANSWER

$S_{26}=1300$

EXPLANATION

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$S_{n}= \frac{n}{2} (a + l)$

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$a = 7$

and the last term of the series is

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