The three side length that describes the triangle in the image attached below are: 5 cm, 12 cm, and 13 cm.
<h3>What is a Triangle?</h3>A triangle is a shape that has three sides. The sides can be measured using a ruler.
The sides of the triangle in the image shown have side lengths as measured by the ruler beside each of the sides, which are 5 cm, 12 cm, and 13 cm.
Therefore, the three side lengths of the triangle in the diagram are: 5 cm, 12 cm, and 13 cm.
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<u><em>p=27.44</em></u>
First you subtract by eleven point three (11.3) from both sides of equation form.
And it gave us ⇒ .
Then you simplify by equation.
And it gave us ⇒ .
Next, you multiply by two decimal eight (2.8) from both sides of equation form.
And it gave us ⇒ .
And then simplify by equation.
.
Next, you divide by negative one (-1) from both sides of equation form.
And it gave us, .
And finally simplify by equation form.
And it gave us the final answer is p=27.44.
Hope this helps!
And thank you for posting you for posting your question at here on brainly, and have a great day. -Charlie