Question

the triangles abc and def are similar . if their areas are 100 cm^2 and 49 cm ^3 respectively and bc = 8.2 cm ,then ef =​

Answer 1

Answer:

EF=(7/10)*8.2=57.4/10=5.74 cm

Step-by-step explanation:

In the Similar triangles

A1/A2= (S1/S2)²

Where S1 and S2 are the coresponding sides

Here A1/A2=100/49

ans S1=BC=8.2 cm  and EF =?

So 100/49=(BC/EF)²

(10/7)² =(8.2/EF)²

10/7 =8.2/EF

EF=(7/10)*8.2=57.4/10=5.74 cm

Answer 2

Answer:

EF = (7/10) × 8.2

= 57.4 / 10

= 5.74 cm

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