What is the perimeter of the triangle ?

30 units

Step-by-step explanation:

To find the length of the two legs of this right triangle, you just need to count the units to get 12 and 5.

Now, to find the length of the hypotenuse (the slanted part). This is the equation for the sides of a right triangle, where a and b are the legs, and c is the hypotenuse;

a^2 + b^2 = c^2

At this point, you just need to plug in the numbers and solve:

12^2 + 5^2 = c^2

= 144 + 25 = c^2

= 169 = c^2

= c = 13

So, the length of the hypotenuse is 13. Now you just need to add the lengths of the sides to get the perimeter:

12 + 5 + 13

= 30 units

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