Question

triangle abc similar triangle area of triangle abc,=6 cm square and the area of triangle def =121 cm square if egg =15.4 cm find bc

Answer 1

A(∆ABC). (BC)²
-------------- = ----------
A(∆PQR). (QR)²
121. ( 3.3)²
----= -----------
81. QR²
=>√121/√81= 3.3/QR
=>11/9=3.3/QR
=>QR= (3.3×9)/11= 0.3×9= 2.7 cm will be the
answer