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Home > CC1 > Chapter 3 > Lesson 3.1.1 > Problem 3-15

3-15.

Find the measure indicated in each question below.

  1. Find the perimeter of the triangle.
    A triangle with sides labeled as follows: 7.25 cm, 8 cm, and 7.2 cm.

    Remember that perimeter is the sum of the border lengths of the shape.

  1. Find the area of the large rectangle.
    A rectangle with 7 rows of 4 tiles in each row.

    Remember that area is the number of square units in a shape.

  1. Find the area and perimeter of the rectangle below.         
     A  horizontal rectangle with left side labeled, 2 inches, and bottom side labeled, 8 inches.

    See parts (a) and (b).



    Be sure to know how to find these answers using the given measurements.