What have I learned about triangles?
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1. Find angle x.
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| 2. There is section AB on the drawing. Draw triangle ABC, if section BC is 90 percent from section AB and the section AC is 2/3 from section AB. Draw an altitude on the triangle, make necessary measurements and find the area of the triangle. ........................................................................... What kind of triangle is it (by angles and by sides)? ........................................................................... ........................................................................... |
Measure angles ........................................................................... |
A and 3. The base of an equilateral triangle is 4.7 dm and the height is 5.2 dm. Find the area of the triangle.
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4. 4. The area of a right-angled triangle is 40 cm² and one side is 8 cm. Find the other side.
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