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Triangle A B C is shown. Angle A C B is a right angle and angle C A B is 45 degrees. The length of hypotenuse A B is 9. Which equations could be used to solve for the unknown lengths of △ABC? Check all that apply. sin(45°) = StartFraction B C Over 9 EndFraction sin(45°) = StartFraction 9 Over B C EndFraction 9 tan(45°) = AC (AC)sin(45°) = BC cos(45°) = StartFraction B C Over 9 EndFraction

Respuesta :

Answer: 1 , 5

Step-by-step explanation:

got it right on edge

khuranashilpa76

Your question is incomplete. please read below to find the missing content.

A. sin(45°) = StartFraction B C Over 9 EndFraction

B. sin(45°) = StartFraction 9 Over B C EndFraction 9

C. tan(45°) = AC (AC)sin(45°) = BC

D. cos(45°) = StartFraction B C Over 9 EndFraction

The answer is option A. sin(45°) = StartFraction B C Over 9 EndFraction

What are trigonometry ratios?

  • Trigonometric ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.

various ratios are:-

  • sin=perpendicular/hypoteneuse
  • cos=base/hypotenuse
  • tan=perpendicular/base   (tan30°)=5/b
  • cot=base/perpendicular
  • sec=hypotenuse/base

cosec= hypotenuse/perpendicular

The ratios of sides of a right-angled triangle with respect to any of its acute angles are known as trigonometric.

According to the question:-

⇒ The length of hypotenuse A B is 9.

⇒ angle C A B is 45°

   ⇒Sin(45°)= perpendicular(BC)/hypotenuseuse(AB)

   ⇒Sin(45°) = BC/9

Learn more about trigonometry here:-https://brainly.com/question/24349828

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