Precalculus Midterms 2022/23

Find the reference angle. -(11π)/12

π/12

Find the reference angle. (3π)/4

π/4

Find the area of each triangle to the nearest tenth. In △EFD, m∠F = 35°, m∠E = 110°, e = 10m

17.5m²

Find a coterminal angle between 0° and 360°. -394°

326° (add 360°)

Find the area of each triangle to the nearest tenth. In △HPK, k = 10mi, h = 16mi, p = 11mi

54.3mi²

Find a coterminal angle between 0 and 2π for each given angle. -((7π)/6)

5π/6

Find the reference angle. 245°

65°

Find the reference angle. -470°

70°

State the quadrant in which the terminal side of each angle lies. (4π)/9

I

State the quadrant in which the terminal side of each angle lies. 31°

I

State the quadrant in which the terminal side of each angle lies. -587°

II

State the quadrant in which the terminal side of each angle lies. (43π)/12

IV

State if the given angles are coterminal. 295°, -655°

No

State if the given angles are coterminal. ((13π)/9), -((5π)/9)

Yes