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vladimir2022 [97]
3 years ago
5

Keelie has a triangular-shaped card. The lengths of its sides are 5.1 cm, 6.8 cm, and 8.5 cm. Is the card a right triangle?

Mathematics
2 answers:
anastassius [24]3 years ago
8 0

Answer:

Yes

Step-by-step explanation:

To figure out if a triangle is a right triangle, you have to plug in the side lengths into the equation a^{2} + b^{2} = c^{2}

Your equation should look like 5.1^{2}  + 6.8^{2}  = 8.5^{2}

Now you simplify. The equation should be: 26.01 + 46.24 = 72.25

Then add 26.01 and 46.24 to get 72.25 = 72.25

Since they are equal, the triangle is a right triangle.

olga nikolaevna [1]3 years ago
6 0

Answer: Yes it is a right angled triangle

Step-by-step explanation: The triangle has three sides given already which are, 8.5 cm, 6.8 cm and 5.1 cm.

In order for the triangle to qualify as a right angled triangle, the longest side must be an hypotenuse. The square of an hypotenuse must be equal to the square of the other two sides added together. This is the Pythagoras theorem, which states that

AC² = AB² + BC²

Where AC is the hypotenuse (longest side)

The longest side in this question is 8.5 cm, therefore, applying the Pythagoras theorem we now have the following expression;

8.5² = 6.8² + 5.1²

72.25 = 46.24 + 26.01

72.25 = 72.25

So, having all three sides fitted into the Pythagoras theorem, we can now conclude that the card is a right angled triangle

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Answer:

a = (n + p)/m

Step-by-step explanation:

just divide by m on both sides

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3 years ago
Please hlp me with this question <br>15 POINTS​
Gala2k [10]

Answer:

1/13, 12/13

Step-by-step explanation:

There are 4 aces in a 52 card deck so P(Ace) = 4 / 52 = 1 / 13.

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3 years ago
Subtract 43 from 20 raised to the 7th power; then multiply by 3.
viktelen [127]

Hi there! :)

<u>Answer:</u>

Subtract 43 from 20 raised to the 7th power; then multiply by 3. The answer is: <u>3,839,999,871</u>

Step-by-step explanation:

"Subtract" means to take away a number from another.

" 20 raised to the 7th power" is the same thing as 20 exponent 7: 20^{7}


SO, you want to take away 43 from 20^{7} and then multiply the answer by 3:

(20^{7} - 43) × 3

20^{7} = 1,280,000,000

(1,280,000,000 - 43) × 3

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6 0
3 years ago
Read 2 more answers
If the sum of three consecutive numbers is 852, what is the middle one?
denis-greek [22]

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852/3 = 284

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5 0
3 years ago
Help solve 4 and 5 please
Sloan [31]

Answer:

Step-by-step explanation:

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b). If the diagonals of a parallelogram are perpendicular, then it must be a SQUARE.

c). If the diagonals of a parallelogram bisect the angles of the parallelogram, then it must be a RHOMBUS.

d). If the diagonals of a parallelogram are perpendicular and congruent, then it must be a SQUARE.

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5). Given quadrilateral SELF is a rhombus.

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b). Diagonals of a rhombus bisects the opposite angles,

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c). Diagonals of the rhombus bisect the opposite angles, and adjacent angles are supplementary.

m∠ELF = 2(m∠ELS) = 2(2y - 9)

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6 0
3 years ago
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