Do Now: For isosceles triangle, find the indicated measure.

Isosceles Triangles Do Now & NotesName:______________________

Date:______________Group:_______

Today’s Notes:

Complete each statement

In an isosceles triangle, the Legs are ___________________________________

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In an isosceles triangle, the Vertex Angle is _____________________________

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The Base of an Isosceles Triangle is ___________________________________

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The Base Angles of an Isosceles Triangle _______________________________

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The Symmetry Line of an Isosceles Triangle _____________________________

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__________________________________________________________________

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T

R I

1a. For the isosceles triangles above name and label

The Legs

The Vertex Angle

The Base

The Base Angles

1b. For the isosceles triangles above draw the Symmetry Line and

then label all of the congruent angles and congruent segments

2. For ∆TWS, find the indicated measures

TRI PON

3.

4. Using the given information, write a persuasive paragraph to explain why BEAL