Geometry (1)( Week 7 Practice) 1. The length of a rectangle is 7 less than twice the width. If the perimeter is 106 feet, what is the area (in square feet)? 2. A quadrilateral is a polygon with four sides. A trapezoid is a quadrilateral with only one pair of parallel sides. A parallelogram is a quadrilateral with two pairs of parallel sides. A rectangle is a quadrilateral with four right angles. A rhombus is a quadrilateral with four sides of equal length. A square is a quadrilateral with all four sides of equal length and four right angles. 
Is a rectangle always a trapezoid? 3. The following shape contains 15 identical squares. The area of the shape is 135 square feet. What is the perimeter (in feet) of the shape? 4. The base of a triangle is 3.9 inches and its height is 2.4 inches. If a vertical line is drawn from the top to the base, the line intersects the base 2.4 inches from one corner and forms two new triangles. What is the area difference (in square inches) of the two new triangles? 5. There are two equal sides in a triangle ABC. ∠A = 30°, what is ∠B in degrees? |