Geometry (1)( Week 7 Practice) 1. The length of a rectangle is 10 less than 3 times the width. If the perimeter is 260 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 trapezoid always a rectangle? 3. The following shape contains 11 identical squares. The area of the shape is 11 square feet. What is the perimeter (in feet) of the shape? 4. The base of a triangle is 6.8 inches and its height is 4 inches. If a vertical line is drawn from the top to the base, the line intersects the base 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 = 140°, what is ∠B in degrees? |