PQR is an equilateral triangle if PR=4x-7 and PQ=2x+5 what is QR
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Step-by-step explanation:
PQR is an equilateral triangle so,
PQ=PR=QR
2x+5=4x-7
2x = 12
x = 6
PR = 4 × 6 - 7
PR = 24- 7
PR = 17
because PQ=PR=QR so,
QR = 17
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