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jalenshayewilliams
26.08.2019 •
Mathematics
In triangle abc , angle a is a right angle and angle b = 45. if ab = 19 feet, what is bc?
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Ответ:
If both non right angles are 45° we have an isosceles right triangle and AC is also 19 feet.
So now we can use the Pythagorean theorem to find the missing side.
a² + b² = c² and we are looking for BC - the hypotenuse of the triangle
19² +19² = c² 361+361 = c² 722= c² and c=√722 or about 26.87
Ответ: