palcochran1313
22.06.2020 •
Mathematics
A triangle has a base length of 15.4 cm. the area of the triangle is 65.45 cm.
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Ответ:
8.5 cm
Step-by-step explanation: The formula for the area of a triangle is base times height divided by 2. To find the original number before dividing by 2 you have to multiply 65.45 times 2, which is 130.9. The length is 15.4 and the original number before dividing by 2 is 130.9 to find the height divide 130.9 by 15.4 which is 8.5. If you plug in the value height is 8.5 cm , length is 15.4 and multiply it and divide it by 2 you will get 65.45.
Ответ:
the missing piece is 9
Step-by-step explanation: