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2 years ago

What is the perimeter of the triangle?

Mathematics

2 answers:

Naya [18.7K]2 years ago

7 0

Answer:

30 units

Step-by-step explanation:

if you count the boxes that each side takes up you get the first side being equal to 5 units and the base being equal to 12 units. because this is a right triangle to find the length of the hypotenuse you have to use the Pythagorean equation. when you input the values into the equation you get 5^2 + 12^2 = 169 which square roots to 13. after doing this you have the length of the final side, now input them into the formula for the perimeter of a triangle which is a + b + c and you get a perimeter of 30 units,

Please mark as brainliest :)

Mariana [72]2 years ago

7 0

5+12+13=30 This is the vertical side plus the horizontal side plus the diagonal side (hypotenuse)

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Answer:

7. d. l = 6.48 cm, w = 6.48 cm

8. d. square

Step-by-step explanation:

For a given area, the perimeter can always be shortened by reducing the length of the long side and increasing the length of the short side. When you get to the point where you can't do that, then you have the minimum perimeter. You will reach that point when the sides are the same length: the rectangle is a square.

7. In light of the above, the best dimensions are √42 ≈ 6.48 cm for length and width.

8. In light of the above, the shape is a square.

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The attached graph shows the length of one side (x) and the associated perimeter. The other side is 42/x, which will also be 6.48.

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lara31 [8.8K]

Answer:

Below!

Step-by-step explanation:

Using Pythagoras theorem, I will solve all of the problems.

<u>Question 9:</u>

10² = 6² + x²
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=> 100 - 36 = x²
=> 64 = x²
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<u>Question 10:</u>

26² = 24² + x²
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=> 676 - 576 = x²
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<u>Question 11:</u>

15² = 12² + x²
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=> 225 - 144 = x²
=> 81 = x²
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<u>Question 12:</u>

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=> x² = 64 + 144
=> x² = 208
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<u>Question 13:</u>

7² = 2² + x²
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=> 49 - 4 = x²
=> 45 = x²
=> x = √45
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<u>Question 14</u>

First, let's solve for the variable x using Pythagoras theorem.

=> 5² = 3² + x²
=> 25 = 9 + x²
=> 16 = x²
=> x = 4 units

Now, let's solve for the variable y using Pythagoras theorem.

(3 + 6)² = 5² + y²
=> (9)² = 25 + y²
=> 81 = 25 + y²
=> y² = 56
=> y = √56
=> y = 7.5 (Rounded) units

Answers (Nearest tenth):

x = 4 units
y = 7.5 units

<u>Question 15:</u>

First, let's find the value of the variable y using Pythagoras theorem.

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=> 28 = y²
=> y = √28
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Now, let's find the value of the variable x using multiplication.

x = 2y
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Answer (Nearest tenth)

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Please check the attached images for the answer. Answer with full explanation is screenshoted. Plz refer.

Thanks ☺️

Hope it helps you.

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Answer:

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Step-by-step explanation:

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What is the perimeter of the triangle?​

What is the perimeter of the triangle?