Question

ABC~∆PQR,BC=4cm और QR=7cm, तब ABCका क्षेत्रफल: PQR का क्षेत्रफल = ?​

Answer 1

Answer:

Given △ABC∼△DEF

In two similar triangles, the ratio of their areas is the square of the ratio of their sides

⇒

ar(DEF)

ar(ABC)

=(

EF

BC

)

2

⇒

ar(DEF)

80

=(

5

4

)

2

⇒

ar(DEF)

80

=

25

16

⇒ar(DEF)=125cm

2