Question

In the given figure PA and B are the tangents to a circle with centre PA 5em and API-60" then the length of the chord AB​

Answer 1

Answer:

The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known organisms. Cells are the smallest units of life, and hence are often referred to as the "building blocks of life". The study of cells is called cell biology, cellular biology, or cytology.

Explanation:

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