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Vadim26 [7]
3 years ago
9

Find the base of a traingle with area 20dm² and height 12 1/2dm ​

Mathematics
1 answer:
AlexFokin [52]3 years ago
3 0

9514 1404 393

Answer:

  32 dm

Step-by-step explanation:

Use the formula for the area of a triangle, and solve for the unknown.

  A = 1/2bh

  200 dm² = 1/2(12.5 dm)b

  b = (200 dm²)/(6.25 dm) = 32 dm

The base of the triangle is 32 dm.

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