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Home > CC2MN > Chapter 7 > Lesson 7.2.2 > Problem 7-69

7-69.

Find the perimeter and area of each triangle below.  

  1. A triangle with side lengths of 14 yards, 12 yards and 14.3 yards, with a line segment, labeled 11 yards, from the top vertex, to the bottom, at right angles.

    The perimeter is the sum of all the sides of the shape.

    Remember to include units.

    The area of a triangle can be found using the formula:

    Remember to include units.

  1. A triangle, with side lengths of 20 ft, 15 ft and 25 ft, with a line segment labeled 12 ft, from the top vertex to the bottom, at a right angle.

    See part (a).

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