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19.01.2021 •
Mathematics
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Ответ:
40
Step-by-step explanation:
Ответ:
40
Step-by-step explanation:
Ответ:
The new triangle will have a perimeter of 36 cm, and an area of 18 cm2.
Step-by-step explanation:
Given that the triangle whose perimeter is 12 cm and its surface is 6 cm2, and is lengthened by a scale factor of 3 to produce a similar triangle, the perimeter and surface of the new triangle arise from the following calculation:
Perimeter = 12 x 3 = 36 cm
Area = 6 x 3 = 18 cm2
Thus, the new triangle will have a perimeter of 36 cm, and an area of 18 cm2.