Question

What is the length of one leg of the triangle?
9 cm
972 cm
18 cm
18/7 cm

Answer 1

Answer:

9(sqrt)2 (B)

Step-by-step explanation:

1. 18(sqrt)2/2=12.727

2. 9(sqrt)2=12.727

3. 12.727=12.727

They match! So the final answer is B

Hope this helps :)

Answer 2

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

A. 9 cm

B. 9$\sqrt{2}$ cm

C. 18 cm

D. 18$\sqrt{2}$ cm

The answer is option B. 9$\sqrt{2}$ cm

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 the trigonometric ratios.

Calculations:-

given length=18 cm (hypoteneuse)

angle = 45°

⇒sin 45°=perpendicular/hypoteneuse

⇒1/$\sqrt{2}$=perpendicular/hypoteneuse

⇒perpendicular =1/$\sqrt{2}$*hypoteneuse

⇒perpendicular = 18/$\sqrt{2}$ = 12.727

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

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