Question

ΔABC and ΔPQR are two similar triangles such that AB:PQ=2:3. if BC+QR=15cm,then find the measure of BC and QR

Answer 1

Answer:. 7.5

Step-by-step explanation:if BC and QR are corresponding sides so they are equal..there full measure is 15 so it's half will be... 7.5

Answer 2

∆ABC and ∆PQR are similar

therefore,AB:PQ=BC:QR=AC:PR =2:3

therefore,BC+QR=2x +3x {where BC=2x and QR =3x}

therefore,2x+3x=15 {Given}

5x=15

x=3

therefore,BC=2x=6 cm

and QR=9cm