Find the perimeter of the triangle ABC
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Find the perimeter of the triangle ABC
To find the perimeter of triangle , we need to sum the lengths of its sides:
Using the formula for the perimeter of a triangle:
Substitute the known values:
Thus, the perimeter of triangle is .
From the multiple-choice options provided, the correct choice is option 1: 12.
12
Find the perimeter of the triangle ABC
Perimeter is the distance around the triangle (adding all sides), while area is the space inside the triangle. For perimeter, just add: 3 + 4 + 5 = 12.
It's a special right triangle because (9 + 16 = 25). The sides follow the Pythagorean theorem perfectly, making it a common example in geometry.
No complex formulas needed! The perimeter formula is simply: P = side₁ + side₂ + side₃. Just add the three given lengths together.
The method stays the same - always add all three sides. Whether it's 2-7-9 or 10-15-20, perimeter is just the sum of all side lengths.
Think of "perimeter" as walking around the edge of the triangle. You'd walk along each side once, so you add up all the side lengths!
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