theorem 6.4- if a line parallel to one side of a triangle interssects the other two sides, then it spilts the two sides equally.
example- collum proof shown above.
test question 1)
DE || BC; AD=3cm; EC= 4cm; DB=11cm; and BC=12cm. Find lenght of AE rounded to the nearest tenth.
DE || BC; AD=3cm; EC= 4cm; DB=11cm; and BC=12cm. Find lenght of AE rounded to the nearest tenth.
Step 1) AE/AC = AD/AB
Step 2) AE/AE +4 = 3/3+11
Step 3) 14 (AE)= 3(AE) + 12
Step 4) 11(AE)=12
Step 5) AE= 1.09 cm.
Step 2) AE/AE +4 = 3/3+11
Step 3) 14 (AE)= 3(AE) + 12
Step 4) 11(AE)=12
Step 5) AE= 1.09 cm.