Question

Angle rst is a right angle angle rsu has a measure of 25 degrees what is the measure of tsu

Answer 1

All three angles in a triangle add up to 180. RST=90 and RSU=25.
90+25=115
180-115=65
Your final answer, the measure of TSU is 65 degrees

Answer 2

∠r st = 90°

∠ rs u = 25 °

∠t s u = ?

∠r s t = ∠ r s u + ∠ t s u →→[s u is a ray]

90° = 25° + ∠ t s u [ Given : ∠r s t= 90°, ∠r s u = 25°]

∠ ts u = 90° - 25°

= 65°