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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. Homework Help ✎

  1. Find the perimeter of the triangle. pic

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

picb. Find the area of the large rectangle.

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

  1. Find the area and perimeter of the rectangle at right.

See parts (a) and (b).

pic

Area = 16 sq. inches
Perimeter = 20 inches
Be sure to know how to find these answers using the given measurements.