Area and Perimeter Review

Start with Perimeter of Polygons and Area of Triangles and Quadrilaterals, then move to the coordinate and missing side sheets. Use Area and Perimeter Review or Area Riddle as a check at the end.

Find both the perimeter and the area of 8 figures in mixed units, filling in missing sides first. The directions on the page read: Find the perimeter P and the area A of each figure and include units. Find any missing sides first. A dashed segment marked with a right angle is a height, and sides with matching tick marks are equal. The page opens with a worked example, and an answer key is included.

Yes, both. We made it for 8th grade geometry, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.

Perimeter adds the lengths around a figure and is measured in units like feet. Area measures the space inside and is measured in square units like square feet. Area and Perimeter Word Problems asks students to decide which one each situation needs, such as fence around a garden or paint on a wall.

Count the length of each horizontal and vertical side from the coordinates. Use the Pythagorean theorem for slanted sides, then add all the sides. In the example on Perimeter on the Coordinate Plane, sides of 7, 2 and the square root of 53 give a perimeter of about 16.3 units.

Write an equation that sets the sum of the sides equal to the perimeter, then solve it. For a rectangle 8.4 m by x m with a perimeter of 30 m, 2x + 16.8 = 30, so x = 6.6. Find a Missing Side From the Perimeter has 8 figures like this.

Yes. With a perimeter of 34 cm, an 11 by 6 rectangle has an area of 66 cm², while an 8.5 by 8.5 square has 72.25 cm². Same Perimeter, Different Area also compares rectangles that share an area but not a perimeter.