In triangle ABC, angle C is 90 degrees. AC = 9, AB = 25. Find sinB.
| July 18, 2021 | education
In the problem, the values of the leg and hypotenuse are given. In order to solve the problem, you do not need to find the value of the second leg. It is enough to use the definition of the sine of an angle in a right-angled triangle ABC. To determine the sine of an acute angle B, it is necessary to find the ratio of the leg length 9 to the hypotenuse length 25. So: sin B = 9/25.
Answer: sin B = 9/25.
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