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What's The actual length of QR (round to 3 decimal places) ?

Whats The Actual Length Of QR Round To 3 Decimal Places class=

Sagot :

Reinhard10158idn

Answer:

4.383

Step-by-step explanation:

Pythagoras

a² + b² = c²

with c being the baseline of the rectangular triangle (the line opposite to the 90 degree angle).

so, in our example here c=6.5cm, a=QR, b=4.8cm

a² = c² - b² = 6.5² - 4.8² = 19.21

a = sqrt(19.21) = 4.383

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