Hp Prime Graphing Calculator Manual do Utilizador descarregar pdf (Página 163)

100

101

Geometry 159

Special

Circumcircle A circumcircle is the circle

that passes through each of

the triangle’s three vertices,

thus enclosing the triangle.

Tap at each vertex of the

triangle, pressing

after each tap.

Incircle An incircle is a circle that is

tangent to each of a

polygon’s sides. The HP

Prime can draw an incircle

that is tangent to the sides of

a triangle.

Tap at each vertex of the

triangle, pressing

after each tap.

Excircle An excircle is a circle that is tangent to one segment of a

triangle and also tangent to the rays through the segment’s

endpoints from the vertex of the triangle opposite the segment.

Tap at each vertex of the

triangle, pressing

after each tap.

The excircle is drawn tangent

to the side defined by the last

two vertices tapped. In the

example at the right, the last

two vertices tapped were A

and C (or C and A). Thus the excircle is drawn tangent to the

segment AC

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Hp Prime Graphing Calculator Manual do Utilizador Página 163

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