Given a circle with center O, points A and B on the circle, and point D on the circle such that arc AB has a measure of $80°$, what is the measure of angle BDA, where BDA is an inscribed angle that intercepts arc AB?

Given a right triangle, which of the following is equal to $\sin (38°)$?

Which of the following correctly expresses the sine of angle $\theta$ in a right triangle in terms of the lengths of the sides?

Given a right triangle where one of the acute angles is $30°$, what is the measure of the other acute angle?

Which trigonometric function is typically used to find the angle of elevation from a point on the ground to the top of a building when the height of the building $h$ and the horizontal distance from the building $d$ are known?

Which of the following statements is true about the angle formed by two perpendicular lines in a right triangle?

Given a right triangle where angle $a$ has an opposite side of length $3$, an adjacent side of length $4$, and a hypotenuse of length $5$, use the triangle to evaluate each function: $\sin \left(a\right)$, $\tan \left(a\right)$, and $\sec \left(a\right)$.

In a right triangle, if angles $b$ and $c$ are the two non-right angles, what is the value of the product $\sin b\times \tan c$ and the product $\sin c\times \tan b$?

In a right triangle, one leg measures $7$ units and the other leg measures $12$ units. Find the measure of the angle opposite the side of length $7$ to the nearest degree.