Tangent always meets radius at 90° angle.
Angle ABC = 90° so Pythagoras' theorem applies.
r² + 4² = (r+2)²
r² + 16 = r² + 4r + 4
12 = 4r
r = 3
1. Let's check the problem backwards. So let's map A"B"C" to ABC
2. We first need to reflect A"B"C" to A"B"C' with A"B"" as the axis of rotation.
3. Then we shift a few units up (translation) A"B"C' to A'B'C
4. Finally we rotate A'B'C around C to map the triangle onto ABC
going backwards we get the answer: b
<span>b.rotation, then translation, then reflection</span>
Answer:5
Step-by-step explanation: you have to dived into two groups into five.
