**4.3 Similar Triangles**

(Read page 146 to 149)

Proportional - in a shape it means same shape but different size

Corresponding - a comparison of two similar sides or angles in an object

Corresponding: LA ~ LD

LB ~ LE

LC ~ LF

LA = LBAC = LCAB LD = LEDF = LFDE

LB = LABC = LCBA LE = LDEF = LFED

LC = LACB = LBCA LF = LEFD = LDFE

Corresponding angles will

*ALWAYS*be equalThe vertices are

*always*upper caseSides are

*always*lower caseExample 2 ( Question 2 )

*Homework*

Check Your Understanding #1 and #2

Practise odds or even

Apply all question

Extend #18, #20, #22, #23

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