Line segments are congruent if they have the same length. However, they need not be parallel. They can be at any angle or orientation on the plane. In the figure above, there are two congruent line segments.Note they are laying at different angles.If you drag any of the four endpoints, the other segment will change length to remain congruent with the one you are changing. For line segments, 'congruent' is similar to saying 'equals'.n the figure above, there are two congruent line segments. Note they are laying at different angles. If you drag any of the four endpoints, the other segment will change length to remain congruent with the one you are changing.
Sonogram vs. Ultrasound. A sonogram is the image generated during ultrasonography, which is a diagnostic imaging technique that uses ultrasound to visualize anything inside the body. Ultrasound is sound with a frequency above the range audible to humans, about 20 kHz. In common parlance, both words are used to refer to the ultrasonography procedure.
In general, ultrasounds (or sonograms) are technically used in medicine to detect changes in appearance of organs, tissues, and vessels or to detect abnormal masses. Most people think of them as what pregnant women get to see the fetus inside their body. However, they have many, many other important uses. Ultrasound scanning is noninvasive and is usually painless. It is widely available, easy-to-use and less expensive than other imaging methods. It can be a safer option since it does not use any x-ray radiation and provides a clear picture of soft tissues that do not show up well on x-ray images. Ultrasounds can provide real-time imaging. Physicians may use ultrasound as a diagnostic tool but itâs not limited to diagnosis.