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kherson [118]
2 years ago
8

Help me with the problem please!!

Mathematics
1 answer:
adell [148]2 years ago
7 0

Step-by-step explanation:

Scale factor red to blue meaning 42 to 7

42÷7=6

Scale factor is 6

Perimeter of the blue quadrilateral = ?

If perimeter of red = 204

Then we use this following proportion

204 \div 42 = x \div 7

\frac{204}{42}  =  \frac{x}{7}

Then we cross multiply

42x=7×204

42x=1428

x=34

Area of the blue quadrilateral = ?

If area of the red quadrilateral = 2880

Then we use the following proportion

2880 \div 42 = x \div 7

\frac{2880}{42}  =  \frac{x}{7}

Then we cross multiply

42x=2880×7

42x=20160

x=480

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