Which expression gives the value of QR? a. 67 sin 80 degrees over sin 52 degrees b. 67 sin 52 degrees over sin 80 degrees c. 51 tan 52 degrees d. 51 sin 80 degrees over cos 52 d…

Question

asked May 12, 2023 53.5k views

1 Answer

Grigori · Answer 1 · 2023-05-15T23:34:14+0000

Answer:

B

Explanation:

using the Sine Rule in Δ QRS

(QR)/(sinS) =
(RS)/(sinQ) ( substitute values )

(QR)/(sin52) =
(67)/(sin80) ( cross- multiply )

QR × sin80° = 67 × sin52° ( divide both sides by sin80° )

QR =
(67sin52)/(sin80)