R.1 Trigonometric ratios: sin, cos and tan Find the sine of D.

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Amir Shirazi asked Jul 25, 2023

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R.1 Trigonometric ratios: sin, cos and tan
Find the sine of D.

Mathematics
high-school

Amir Shirazi asked Jul 25, 2023

by Amir Shirazi

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1 Answer

26 votes

Answer:

Below.

Explanation:

Using Pythagoras theorem:

(√69)^2 = (√47)^2 + BC^2

BC^2 = 69-47 = 22

BC = √22.

sin D = BC / CD

= √22/√69

= 0.5647 to nearest ten thousandth.

Ghoul Ahmed answered Jul 29, 2023

by Ghoul Ahmed

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