Circles

X squared plus y squared equals r squared

Properties of circles, now you’re prepared

X squared plus y squared equals r squared

Properties of circles, no need to be scared

This geometric figure never stops going round

All points are equidistant from the center to the ground

We recognize this shape, that of a circle

Has properties throughout, those universal

The distance from the center to a point on the end

Is called the radius, doesn’t change doesn’t bend

A straight line with two endpoints that lie on a circle

Is referred to as a chord, diameter is its focal

Point is on the midpoint, exiting on the center

The middle of the shape, never ends never enters

A tangent is a line that touches, doesn’t pass through

The circle at one point, only has a single debut

If the radius hits a tangent at its point of contact

They form a right angle, perpendicular artifact

A secant is a line that passes through two points

It differs from a chord, no terminating joints

An angle formed at center by two radii

Is a called a central angle, the arc identifies

The measure is congruent, relationship direct

A sector is the area contained in intercept

A segment of a circle is the region bounded by

A chord and its arc, surrounded comply

If an arc is bigger 180, degrees its major

The smaller ones are minor, in this nomenclature

A semi-circle is half, not major nor minor

It measures 180, vertex is flat liner

If two chords share an endpoint on the edge of a shape

The angle is inscribed, at a two to one rate

The arc is twice as large, to the angle correspond

The vertex half the measure, to the arc that’s beyond

If a central angle intercepts, an arc of equal length

To that of the radius, its one radian not degrees

Radians are important in trigonometry

Two pi radians three sixty degrees

X squared plus y squared equals r squared

Properties of circles, now you’re prepared

X squared plus y squared equals r squared

Properties of circles, no need to be scared

X squared plus y squared equals r squared

Properties of circles, now you’re prepared

X squared plus y squared equals r squared

Properties of circles, no need to be scared

X squared plus y squared equals r squared

Properties of circles, now you’re prepared

X squared plus y squared equals r squared

Properties of circles, no need to be scared