The Triangles Are Similar $\sin \theta > 0$ And $\cos \theta < 0$

question 13

Multiple Choice

The triangles are similar. Find the angle or side that corresponds to the given angle or side in the other triangle.
- $\sin \theta > 0$ and $\cos \theta < 0$

• A) Quadrant IV
• B) Quadrant II
• C) Quadrant III
• D) Quadrant I

---

Definitions:

Membrane

A selective barrier that encloses the cell or organelles within a cell, controlling the movement of substances in and out.

Mitochondria

Organelles responsible for generating most of the cell's supply of adenosine triphosphate (ATP), playing a key role in energy metabolism.

Gradient Formation

The process by which a concentration gradient of a particular molecule or ion is established, often across a biological membrane.

Electron Transport System

A series of complexes that transfer electrons through a membrane to create a gradient used for ATP production.