homework_remembering_te_grade_4-1zwawpi

8-9
Name
Date
1. Draw a rectangle and a parallelogram. Draw one diagonal
on each figure. Name the kinds of triangles you made.
Answers may vary. Check students’ drawings.
2. Draw your figures again. Draw the other diagonal
and name the kinds of triangles you made this time.
Answers may vary. Check students’ drawings.
© Houghton Mifflin Harcourt Publishing Company
3. Use geometry words to describe how diagonals of
quadrilaterals make triangles.
On each side of the diagonal of a quadrilateral,
there are two line segments adjacent to the
diagonal. So there are two triangles that share
the diagonal as a side.
4. Use geometry words to describe a way to separate
triangles into other triangles.
A segment drawn from a vertex perpendicular to
the opposite side will create two right triangles.
In isosceles and equilateral triangles, these two
right triangles will be the same size and shape.
UNIT 8 LESSON 9 Deconstructing Quadrilaterals and Triangles 191