One side of the triangle is 10 cm, it is 2 cm less than the second side and 3 cm less than the thirds.

One side of the triangle is 10 cm, it is 2 cm less than the second side and 3 cm less than the thirds. Calculate the perimeter of this triangle.

1 side – 10 cm
2nd side -? cm, 2 cm more than (show with an arrow on 1 side)
3rd side -? cm, 3 cm more than (show with an arrow on 1 side)
P triangle -? cm

Decision:
1) 10 + 2 = 12 (cm) – 2 side of the triangle
2) 10 + 3 = 13 (cm) – 3 side of the triangle
P = a + b + c
P = 10 cm + 12 cm + 13 cm
P = 35 cm

Answer: The perimeter of the triangle is 35 centimeters.