9, the side length of the square is 2 (a + b), the area of the shadow part B in the known figure is 7 square centimeters, how many square centimeters is the sum of the shadow part A and C?
9 title maps
10, as shown in the figure, ABCD is a right angle trapezoid, to find the area of the shadow part and sum. (Unit: cm)
10 questions
11. Ask the area of the shadow part of the figure below
11 title maps
12. In the figure below, the two cubes with edge lengths of 10 and 15 are placed together to find the area of △ ABC (shadow part).
12 question maps
13. In the figure below, the area of △ABC is 36 square centimeters, the area of △ABE and △AEC is equal, if AB = 9 cm, FB = FE, the area of △AFE is found.
13 title maps
14. The side lengths of the two squares in the figure are 10 cm and 6 cm respectively, and the area of the shadow part is found.
14 questions
15. The area of △ ABC in the figure is 36 square centimeters, ac length is 8 centimeters, DE length is 3 centimeters, and the area of the shadow part is found (ADFC is not square).
15 title maps
16. In △ABC, DC=2BD, CE=3AE, the area of the shadow part is 20 square centimeters, and the area of △ABC is found.
16 questions
17, as shown in the figure, in △ ABC, D is the midpoint of BC, E, F is the third equinox of AC. The area of △ABC is known to be 108 square centimeters, and the area of △CDE is found.
17 questions
18. In the following figure, BD = 2 cm, DE = 4 cm, EC = 2 cm, F is the midpoint of AE, the height of the BC side of △ ABC is 4 cm, and the shadow area is what is the square centimeter?
18 questions
The 18 problems of the fifth grade math combination graphics are summarized, and I will send the original problem teaching video for the above question types, and ask parents and friends to like, pay attention to, and forward.