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Name _______________________________________ Date __________________ Class __________________
1.5 Practice A
Using Formulas in Geometry
Use the figure for Exercises 1 and 2.
1. Find the perimeter of the rectangle. __________
2. Find the area of the rectangle. __________
Use the figure for Exercises 3 and 4.
3. Find the perimeter of the triangle. __________
4. Find the area of the triangle. __________
Draw your answer in the space provided.
5. Sketch a circle and label the
center, a diameter, and a radius.
Find the perimeter and area of each shape.
6. square with a side 2.4 m in length
________________________________________
7. rectangle with length (x  3) and width 7
________________________________________
8. Although a circle does not have sides, it does have a perimeter.
What is the term for the perimeter of a circle?
_______________
Find the circumference and area of each circle.
9.
10.
________________________
________________________
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Geometry
Name _______________________________________ Date __________________ Class __________________
Use the figure for Exercises 11 and 12.
Lucas has a 39-foot-long rope. He uses all the rope to
outline this T-shape in his backyard. All the angles in
the figure are right angles.
11. Find x. _______________
12. Find the area enclosed by the rope. _______________
13. The area of a square is
1 2
in . Find the perimeter. _______________
4
14. The area of a triangle is 152 m2, and the height is 16 m. Find the base. _______________
15. The circumference of a circle is 25 mm. Find the radius. _______________
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Geometry