triangle ABC and trianglePQR are 64cmsquare and 100cm square.If BC=4cm,then find QR
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Answer:
ΔABC~ΔPQR
IT MUST BE GIVEN
RATIO OF AREAS OF TWO SIMILAR ΔS IS EQUAL TO THE RATIO OF THE SQUARES OF THE CORRESPONDING SIDES OF THE TWO ΔS
AR(ΔABC)/ARΔ(PQR)=BC²/QR²
64/100=4²/QR²
SQUARE ROOT OF BOTH SIDES
8/10=4/QR
8/40=1/QR
1/5=1/QR
⇒QR=5CM
Step-by-step explanation:
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