Question

The area of two similar triangle ABC and PQR are 25cm² and 49cm² respectively and QR=9.8 cm then BC=..............

Answer 1

the answer is 5cm. hope it helps

Answer 2

Since triangle ABC and PQR are

Similar to each other,

Therefore

Area of ABC/Area of PQR=BC^2/QR^2

THEREFORE,25/49=BC^2/QR^2

=5/4=BC/9.8

=5*9.8=4BC

=49=4BC

BC=49/4

=12.25CM