Answer:
The measure of the two supplementary angles are 65 degrees and 115 degrees.
Step-by-step explanation:
The sum of supplementary angles is equal to 180 degrees. Let x and y are two angles such that,
According to given condition,
One supplementary angle is 15 degrees less than twice the other, it means,
Putting the value of x from above equation in equation (1),
Now put the value of y in equation (1), so,
So, the measure of the two supplementary angles are 65 degrees and 115 degrees.
The graph of the inverse secant function would possibly be the third one I think.
Special right triangles. A special right triangle is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist. For example, a right triangle may have angles that form a simple ratio, such as 45-45-90. This is called an "angle based" right triangle.
Answer: 12.66
Step-by-step explanation:
Use pytagoras to find CB
AB= 6 cm
CA=12 cm
CB²=CA²-AB²
CB²=12²-6²
CB²=144-36
CB=√108
CB=6√3
Using formula for sinα=CB/CD
α=55°
sin55°=6√3/CD
CD=6√3/sin55°
CD= 6*1.73/0.82=10.38/0.82=12.66
