Chapter 22.5B, Problem 4A

Summary Introduction

a.

To determine:

Whether all meridians are halves of great or small circles.

Introduction:

Meridian is the imaginary of the half-circle on the Earth’s surface. It stretches from pole to pole. All meridians are of the same length, and they form the semi-circle.

Summary Introduction

b.

To determine:

Whether all parallels, are great or small circles with an exception of equator.

Introduction:

The Equator is present in the middle of the Earth, and it separates the Northern hemisphere and the Southern hemisphere. The Equator refers to an imaginary line that runs from east to west on the Earth’s surface.

Summary Introduction

c.

To determine:

The equator is a great circle or small circle.

Introduction:

The Equator is a rotating spheroid, and it makes a middle line at the center of the planet. It is halfway between the North pole and the South pole.

Summary Introduction

d.

To determine:

Whether the poles are the points or circles of latitude.

Introduction:

Latitudes specify the north-south coordinate on the Earth surface. Latitude ranges from angle 0 to 90 degree on the poles.