All the solutions provided in McGraw Hill My Math Grade 2 Answer Key PDF Chapter 12 Review will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Chapter 12 Review Answer Key
Vocabulary Check
Draw each shape.
Question 1.
hexagon
Answer:
Explanation:
A hexagon has 6 sides and 6 vertices
Question 2.
quadrilateral
Answer:
Explanation:
A quadrilateral has 4 sides and 4 vertices.
Match each word to the correct shape.
Answer:
Explanation:
The shapes are matched according to there shape names.
Concept Check
Circle the shapes that match the name.
Question 9.
rectangle
Answer:
Explanation:
A rectangle has 4 sides and 4 corners.
so, circled a rectangle.
Question 10.
pentagon
Answer:
Explanation:
A pentagon has 5 sides and 5 vertices.
so, circled a pentagon.
Circle the shape that matches the description.
Question 11.
3 sides and 3 angles
Answer:
Explanation:
A triangle has 3 sides and 3 corners
so, circled a triangle.
Question 12.
6 sides and 6 angles
Answer:
Explanation:
A hexagon has 6 sides and 6 vertices.
so, circled the hexagon.
Write the name of the shape. Color the shapes that match.
Question 13.
Answer:
Explanation:
A cylinder has 2 circle faces and a curved surface.
Circle the object that matches the description.
Question 14.
6 faces, 12 edges, 8 vertices
Answer:
Explanation:
A rectangular prism has 6 faces, 12 edges, 8 vertices
so, circled the carry bag as it is in the shape of a rectangular prism
Problem Solving
Question 15.
Caden’s family is having pizza for dinner. There are 4 people in Caden’s family. Draw lines to show how Caden’s family should cut the pizza so that everyone gets an equal part.
Answer:
Explanation:
Caden’s family is having pizza for dinner.
There are 4 people in Caden’s family.
Lines of symmetry is drawn to cut the pizza in to 4 equal parts.
Question 16.
Jamie drew a rectangle. He wants to partition it into equal-sized squares. He starts to partition the rectangle. Finish partitioning his rectangle. Write the total number of squares.
______________ squares
Answer:
Explanation:
5 x 3 = 15 squares
Jamie drew a rectangle.
He partition the rectangle
so, there are 15 squares in the rectangle.
Test Practice
Question 7.
Blake has a peanut butter and jelly sandwich for lunch. He wants to share it with his 2 friends. Circle the word that tells how Blake should partition his sandwich.
halves
thirds
fourths
fifths
Answer:
Halves
Explanation:
He cuts the sandwich into two equal halves.
Reflect
Show the ways you can use shapes and equal parts.
Identify each shape.
Answer:
Answer:
The given shapes are 2-D shapes they are triangle and rectangle
The given shapes are 3-D shapes they are Cube and a pyramid.
Essential Question
How do I use shapes and equal parts?
Answer:
Shapes are divided to equal parts to find the area.
For example, the plot is in the shape of a square
to construct a building we can divide the parts and construct the rooms
Partition the shape to match the description
Answer:
The square is divided into thirds.
Write how many squares make the rectangle.
___________ squares
Answer:
8 squares
A rectangle has divided in to 8 squares.