Given that y
= 11 cm and θ
= 44°, work out x
rounded to 1 DP.
y=rsinθ=rsin44°=11y=rsin\theta=rsin44\degree=11y=rsinθ=rsin44°=11 cm
r=11/sin44°=15.8r=11/sin44\degree=15.8r=11/sin44°=15.8 cm
x=rcosθ=15.8cos44°=11.4x=rcos\theta=15.8cos44\degree=11.4x=rcosθ=15.8cos44°=11.4 cm
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