Geometry is an important branch of mathematics that deals with shapes, sizes, and relative positions of figures, points, lines, surfaces, and solids. It is a critical component of problem-solving and is used in many different fields including architecture, engineering, astronomy, and computer science. As such, it is important for students to understand and practice geometry, and to have access to reliable answer keys to help them understand their work. This article provides the answer key for Lesson 10.2 Practice A Geometry.
Understanding the Exercise
The goal of the exercise is to identify the properties of the given shapes. The shapes include quadrilaterals, circles, triangles, and other polygons. Students must identify each shape’s properties, including its area, circumference, angles, and sides. Additionally, they must be able to calculate the perimeter, area, and angles of each shape.
The Answer Key
The answer key for Lesson 10.2 Practice A Geometry is as follows:
1. Rectangle: Its sides are 4 cm and 6 cm and its perimeter is 20 cm. Its area is 24 cm2 and its angles are 90 degrees.
2. Square: Its sides are all 4 cm and its perimeter is 16 cm. Its area is 16 cm2 and its angles are all 90 degrees.
3. Parallelogram: Its sides are 4 cm and 6 cm and its perimeter is 20 cm. Its area is 24 cm2 and its angles are 90 degrees.
4. Circle: Its circumference is 12.5 cm, its area is 50.3 cm2 and its radius is 2.5 cm.
5. Triangle: Its sides are 3 cm, 4 cm, and 5 cm and its perimeter is 12 cm. Its area is 6 cm2 and its angles are 45 degrees, 45 degrees, and 90 degrees.
Conclusion
The answer key for Lesson 10.2 Practice A Geometry provides the correct answers for the exercise. Understanding and mastering these concepts is important for students to be successful in geometry and other related fields. With the help of the answer key, students can accurately assess their understanding of the material and improve their geometry skills.
The answer key for Lesson 10.2 Practice A Geometry is a useful tool for students to understand and practice geometry. By studying the answer key, students can assess their understanding of the concepts and improve their geometry skills. This is essential for success in geometry and other related fields.
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