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Task 19. Movement.
Two trains meet each other at velocities v1 = 60 km / h and v2 = 65 km / h.
After three hours, the distance between them was equal to 205..
Question 1
. How many kilometers did each train travel separately in three
hours?
Answer:
________.
Question 2
. How many hours will the trains meet?
Answer:
________.
Task 20. Square.
A square piece of paper with a side of 8 cm overshot
on the dotted lines shown
in Figure 5, and laid down a triangular pyramid.
Question.
What is the volume of the resulting body?
Figure 5
Task 21.
Polygon.
Figure 6 shows a mosaic made up of geometric shapes. Using drawing, answer
the following questions.
Fig. 6
Question 1. How many rectangles are there in the picture?
Answer: ________.
Question 2. How many right-angled triangles (with the smallest area) are there
in the picture?
Answer: ________.
Question 3. How many osceles triangles are there in the picture?
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Answer: ________.
Question 4. How many rhombus are there in the figure?
Answer: ________.
Достарыңызбен бөлісу: 
