Starting from One Oasis,a Camel Walks 25 Km in a Direction

question 45

Multiple Choice

Starting from one oasis,a camel walks 25 km in a direction 30 $\degree$ south of west and then walks 30 km toward the north to a second oasis.What distance separates the two oases?

• A)15 km
• B)48 km
• C)28 km
• D)53 km
• E)55 km

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Definitions:

Diameter

A straight line segment passing through the center of a circle or sphere and terminating on both sides of the perimeter, effectively measuring the largest distance across the shape.

Vertex

A point where two or more curves, lines, or edges meet; in geometry, it is often used to describe a corner point of a polygon or an angle.

Parabola

A symmetrical, curved, plane curve, which is the graph of a quadratic function.

Focus

A specific point used in the definition of conic sections, such as the vertex of a parabola or one of the two fixed points in an ellipse or hyperbola.