Cone; Cylinder; ball
Practice the answer to question 2 on page 6.
The surface of the cubic carton is flat, and the surface of the football is curved. The answer is not unique.
Qingdao Edition Seventh Grade Mathematics Textbook Volume 1 Answer (2)
The answer to the question 1. 1.
Solution: porcelain altar: the taboo of porcelain altar is flat, and its side is curved.
Mouse: The bottom of the mouse is flat and the other surfaces are curved.
Diabolo: The ground of two cylinders is flat and the other surface is curved.
Windows: The glass of the window is flat, and the eaves of the window are curved.
Exercise 1. 1 answer to question 2
Grain depot: the lower part is a cylinder, and the upper part is a cone with the same bottom as the cylinder.
Weight: approximate cylinder.
Refrigeration room: cuboid.
Oil storage tank: similar to a sphere.
Exercise 1. 1 answer to question 3
Cuboid: chalk box, textbook, etc.
Cylinders: tea cones, water cups, etc.
Cone: funnel, etc.
Ball games: football, basketball, table tennis, etc.
Qingdao Edition Seventh Grade Mathematics Textbook Volume 1 Answer (3)
Page 9 Exercise 1 Answer to the question.
Point to point calibration
Practice the answer to question 2 on page 9.
(1) lines are transformed into surfaces;
(2) Surface moving body.
Practice the answer to question 3 on page 9.
Hexagon, triangle.
Qingdao Edition Seventh Grade Mathematics Textbook Volume 1 Answer (4)
Page 65438 +0 1 exercises 1 answers
(1) learning;
(2) Happiness or Numbers
Page 1 1 Exercise 2 Answer