1. Write the solution of the calculation problem first, and then copy the formula =, or replace the formula with the original formula, that is, write and solve the original formula =.

2, the application problem begins to write the solution, that is to say, you start to answer the question, and of course you have to write the question to answer the question at the end.

3. In the example, if there are many questions, write the solution (1)(2)(3) and answer them respectively.

For example, the solution: (1) from ∠ 1=∠2, A is parallel to B (a mathematical symbol for parallelism), based on the fact that the congruence angle is equal and the two lines are parallel.

(2)、、、、、、

(3)、、、、、、

Students, come on! Satisfied with the adoption! :)