Angle ABC, A=29° B=36°, b=15,8cm find a?
use the law of sines
a/sinA = b/sinB
so plug in your numbers and solve for a.
To find the length of side a in triangle ABC, we can use the law of sines. The law of sines states that the ratio of the length of a side of a triangle to the sine of the opposite angle is constant.
In this case, we have angle A with a measure of 29° and angle B with a measure of 36°. We also know that side b has a length of 15.8 cm. To find side a, we can set up the following equation using the law of sines:
a / sin(A) = b / sin(B)
Plugging in the known values:
a / sin(29°) = 15.8 / sin(36°)
To find side a, we can solve for a:
a = (15.8 * sin(29°)) / sin(36°)
Using a calculator, we can evaluate the trigonometric functions and find that sin(29°) is approximately 0.4848 and sin(36°) is approximately 0.5878. Substituting these values into the equation:
a = (15.8 * 0.4848) / 0.5878
a ≈ 13.01 cm
Therefore, side a has a length of approximately 13.01 cm.
Sooo...
Angle A is 29 degrees.
Angle B is 36 degrees.
b=15,8cm find a?
What does 15,8 mean?? Or did you mean 15.8 cm?