CHAPTER 4  Objective 3.1  Exercises

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Solve.

1.  The perimeter of a rectangle is 144 ft. The length of the rectangle is three times the width. Find the length and width of the rectangle.

2.  In an isosceles triangle, two sides are equal. The third side is 5 m less than one of the equal sides. The perimeter is 40 m. Find the length of each side.

3.  The perimeter of a triangle is 42 ft. The first side is 3 ft more than the second side. The third side is 1 ft less than twice the second side. Find the measure of each side.

4.  The perimeter of a triangle is 180 ft. One side is twice the second side. The third side is 20 cm more than the second side. Find the measure of each side.

5.  The perimeter of a rectangle is 70 m. The length of the rectangle is 5 m more than twice the width. Find the measure of the width.

6.  In an isosceles triangle, one angle is 8° less than twice the measure of one of the equal angles. Find the measure of each angle.

7.  In a triangle, one angle is twice the measure of the second angle. The third angle is 12° more than the second angle. Find the measure of each angle.

8.  In a triangle, one angle is 10° more than the measure of the second angle. The third angle is 20° more than the measure of the second angle. Find the measure of each angle.

9.  One angle of a triangle is three times the measure of the second angle. The third angle is five times the measure of the second angle. Find the measure of each angle.

10.  The first angle of a triangle is three times the measure of the second angle. The third angle is 5° more than the measure of the first angle. Find the measure of each angle.

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