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muminat
3 years ago
10

PLEASE PLEASE PLEASE!

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0

Answer:

70

Step-by-step explanation:

The area of one of the four triangles is \frac{1}{2}\times 5 \times 7 = 17.5. So together the area of all the four traingles is 4\times 17.5 = 70

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