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Can someone help please? A) 4cm B) 21cm C)13.2cm D)10.7cm
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5 votes
Can someone help please?
A) 4cm
B) 21cm
C)13.2cm
D)10.7cm

Can someone help please? A) 4cm B) 21cm C)13.2cm D)10.7cm-example-1
User Nitin Bhojwani
by
7.2k points

1 Answer

4 votes
sin θ =
(opp)/(hyp)

If θ = 51° ; opp = QR ; hyp = 17 cm

Then sin 51° =
(QR)/(17cm)

⇒ QR = (sin 51°) (17 cm)
= 13.21 cm

∴ the answer is OPTION C
User Chadnt
by
5.6k points
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