Question

The sides of a triangle measure 2.22 inches, 3.54 inches, and 4.5 inches. What is the perimeter of this triangle? Report the answer with the appropriate number of significant digits.

10.26 inches
10.30 inches
10 inches
10.3 inches

Answer 1

The correct option will be: 10.3

Explanation:

The sides of a triangle measure 2.22 inches, 3.54 inches and 4.5 inches.

Perimeter means the sum of all sides lengths. That means, we will just add all the side lengths for finding the perimeter.

So,
`(2.22+3.54+4.5) inches = 10.26` inches.

Since 4.5 has one decimal place, which is the least number of decimal places, so the answer with the significant digit will be 10.3 inches.

Thus the perimeter of the triangle is 10.3 inches.