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OLga [1]
3 years ago
15

Please help!!! 10 points up!

Mathematics
1 answer:
Dimas [21]3 years ago
8 0

Statements are all TRUE

sinA = \frac{a}{c} and cosB = \frac{a}{c}


cscA = 1/sinA = 1/(a/c) = \frac{c}{a} and secB = 1/cosB = 1/(a/c) = \frac{c}{a}

tanA = \frac{a}{b} and cotB= 1/tanB = 1/ (b/a) = \frac{a}{b}


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kondaur [170]

Complete question is;

Andrea is given ABC and told that a² + b² = c². She draws right triangle RTS with legs measuring a and b and hypotenuse measuring 2. Which best describes what Andrea should

do in order to prove that ABC is a right triangle?

Answer:

Andrea should show that c = 2, so: ∡ABC = ∡RTS and ∡C = ∡S. Hence, ∡C is a right angled triangle, hence ΔABC is a right triangle

Step-by-step explanation:

In this question, we are told that the given sides of the triangle are a, b and c. Now, Andrea is able to draw the two sides of the right triangle with sides = a and b and the third, hypotenuse equal to 2. Since the length of the hypotenuse = 2, then we have;

2² = a² + b²

However, we are told that c² = a² + b²

Therefore, c = 2

Hence, Andrea should show that c = 2 so ΔABC = ΔRTS and ∡C = ∡S hence ∡C is a right angled triangle since it is the angle opposite to the hypotenuse c and therefore, ΔABC is a right triangle.

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3 years ago
The pair of shoes you want is on sale for 25% off. If the shoes originally cost $65, how much is the sale price
Ludmilka [50]
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Good this help. Ask if you want me to explain :)
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Answer:

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Tems11 [23]
Hey there!
Let's do this step by step:

1. P-13=2  -------Write out the equation

2. P-13+13=-2+13  ------- Undo the operations

3. \frac{p}{1} = \frac{11}{1}  ------- What you get

4. P=11

(If you feel that my answer has helped you, please consider rating it and giving it a thank you! Also, feel free to make the best answer, the brainliest answer!)

<span>Thank you for being part of the brainly community! :D</span>
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