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Vladimir79 [104]
2 years ago
7

Use the Pythagorean Theorem to determine which of the following give the measures of the legs and hypotenuse of a right triangle

. Check all that apply.
A. 3, 4, 5
B. 4, 11, 14
C. 9, 14, 17
D. 8, 14, 16
E. 8, 15, 17
Mathematics
2 answers:
kakasveta [241]2 years ago
4 0

The Pythagorean theorem states that the square of the hypotenuse is equal to  the sum of the squares of the legs:

c^2=a^2+b^2.

The hypotenuse is the side with the greatest length.

Check all options:

1. c=5, a=3, b=4:

5^2=25,\\3^2+4^2=9+16=25,\\5^2=3^2+4^2 true.

2. c=14, a=4, b=11:

14^2=196,\\4^2+11^2=16+121=137,\\14^2\neq 4^2+11^2 false.

3. c=17, a=9, b=14:

17^2=289,\\9^2+14^2=81+196=277,\\17^2\neq 9^2+14^2 false.

4. c=16, a=8, b=14:

16^2=256,\\8^2+14^2=64+196=260,\\16^2\neq 8^2+14^2 false.

5. c=17, a=8, b=15:

17^2=289,\\8^2+15^2=64+225=289,\\17^2=8^2+15^2 true.

Answer: correct options are A and E.

Inessa [10]2 years ago
4 0

Using the Pythagorean Theorem the measures of the legs and hypotenuse of a right angled triangles are;

A. 3, 4, 5

E. 8, 15, 17

<h2>Further Explanation;</h2><h3>Pythagoras theorem</h3>
  • Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the squares of the legs.
  • Therefore; if the legs of a right-angled triangle are a and b and the hypotenuse is c, then: a^{2} + b^{2} = c^{2}
<h3>In this case;</h3><h3>Options A and E are correct because they obey the Pythagoras theorem;</h3><h3>1.Option A</h3><h3>3, 4, 5 </h3>

a= 3, b=4, and c= 5

Therefore using Pythagoras theorem;

a^{2} + b^{2} = c^{2}

Replacing the variables

3^{2} + 4^{2} = 5^{2}

9 + 16 = 25 = c^{2} (True)

<h3>2. Option e</h3><h3>8, 15, 17 </h3>

a= 8, b=15, and c= 17

Therefore using Pythagoras theorem;

a^{2} + b^{2} = c^{2}

Replacing the variables

8^{2} + 15^{2} = 17^{2}

64 + 225= c^{2} = 289 (True)

<h3>Options B and C are incorrect because they don't follow the Pythagoras theorem.</h3><h3>1. Option B </h3>

a= 4, b=11, and c= 14

Therefore using Pythagoras theorem;

a^{2} + b^{2} = c^{2}

Replacing the variables

4^{2} + 11^{2} = 14^{2}

16+ 121 = 137 ≠ c^{2} (False)

<h3>2. Option C</h3>

a= 9, b=14, and c= 17

Therefore using Pythagoras theorem;

a^{2} + b^{2} = c^{2}

Replacing the variables

9^{2} + 14^{2} = 17^{2}

c^{2} = 289

81 + 196 = 277 ≠ c^{2} (False)

<h3>3. Option D </h3>

a= 8, b=15, and c= 16

Therefore using Pythagoras theorem;

a^{2} + b^{2} = c^{2}

Replacing the variables

8^{2} + 15^{2} = 16^{2}

c^{2} = 256

64 + 225 = 289 ≠ c^{2} (False)

Keywords: Right triangle, Pythagoras theorem

<h3>Learn more about:  </h3>
  • Pythagoras theorem: brainly.com/question/4098846
  • Right triangle: brainly.com/question/4098846

Level; High school  

Subject: Mathematics  

Topic: Pythagoras theorem

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