Question

A triangle has side lengths of (2t + 2) centimeters, (6t – 7) centimeters,

Answer 1

A triangle is a three-sided polygon.  The sum of angles in a triangle is 180 degrees.

Types of triangles

1. An equilateral triangle : the three sides are equal in length.
2. An isosceles triangle : two sides are equal in length
3. A right angled triangle : an angle measures 90 degrees

The perimeter of a triangle is (8t -7 + u) centimeters

The perimeter of a triangle is the sum of the three lengths of the triangle

2t +2 + 6t - 7 + u -2

Combine similar terms

(2t + 6t) + (2 - 7 - 2) + u

Add combined similar terms

8t -7 + u

To learn more about the perimeter of a triangle, please check: brainly.com/question/11681906?referrer=searchResults