Question

Let triangle ABC similar triangleDEF and their area be respectively 64 CM square and 121 CM square if EF equal to 15.4 cm find BC

Answer 1

Answer:

bc 11.2cm

Step-by-step explanation:

ar(ABC)=(AB)^2=(BC)^2=(AC)^2

ar(DEF)=(DE) (EF) (DF)

ar(ABC)=(BC)^2

ar(DEF) (EF)

64 = ( BC)^2

121 (15.4 ( 8 )^2 = (BC)^2 CROSSMULTIPLICATION ( 11) = (15.4)

BC×11=8×15.4

BC=8×15.4 (CALCULATION)

11

BC= 11.2CM

Answer 2

Answer:

Hope this helps you

Step-by-step explanation: