7.4. Similarity by SSS and SAS http://www.ck12.org
- Find the slopes ofCA,AR,LOandOT.
- What are the measures of^6 Aand^6 O? Explain.
- FindLO,OT,CAandAR. Use these values to write the ratiosLO:CAandOT:AR.
- Are the triangles similar? Justify your answer.
Review Queue Answer
- a.^6 A∼=^6 D,^6 E∼=^6 C
b. 4 ABE∼4DBC
c.BE= 10
a.^68 =^21 x,x= 28
b. 15(x+ 2 ) = 6 ( 2 x− 1 )
15 x+ 30 = 12 x− 6
3 x=− 36
x=− 12
2.(x− 3 )(x+ 2 ) = 36
x^2 −x− 6 = 36
x^2 −x− 42 = 0
(x− 7 )(x+ 6 ) = 0
x= 7 ,− 6