All triangles must equal 180°. So there you have a right angle which = 90° and a 25° angle. add those together to get 115°. Now do 180-115=65°. the missing angle is 65°.
So we all know that a triangle has 180°, and we know that we have a 25° and a 90°, so you just need to add those two numbers together which is equal to 115, and then 180 minus 115, which is 65, so the final answer would be 65°. Hope this helps!!!!
