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goldfiish [28.3K]
3 years ago
10

Can anyone help. Greatly appreciate:)

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
6 0

Answer:

Area= 12 units squared, Perimeter= 16.12899

Step-by-step explanation:

AC= \sqrt{(4-0)^{2}+ (0+4)^{2}} = 4\sqrt{2}

AB= \sqrt{(0-4)^{2}+ (2-0)^{2} } = 2\sqrt{5}

BC= \sqrt{(0-0)^{2}+ (2+4)^{2} }= 6

So, perimeter= 4\sqrt{2} + 2\sqrt{5} +6= 16.12899

Area= \frac{1}{2}bh\\

        = \frac{1}{2}BC\sqrt{(4-0)^{2}+(0-0)^{2}  }

         = 12 units^{2}

       

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Read 2 more answers
a pile of sand has a weight of 90kg The sand is put into a small bag, a medium bag and a large bag in the ratio of 2 : 3 : 7 Wor
just olya [345]
Hi there!

To split 90 kilos in the ratio of 2 : 3 : 7 we must first realise that we have a total of 2 + 3 + 7 = 12 parts, in which we must split the total 90 kilos.

12 parts equal 90 kilo, and therefore
1 part equals 90 / 12 = 7.5 kilos.

1 part equals 90 / 12 = 7.5 kilos, and therefore
2 parts equal 7.5 × 2 = 15 kilos.

1 part equals 90 / 12 = 7.5 kilos, and therefore
3 parts equal 7.5 × 3 = 22.5 kilos.

1 part equals 90 / 12 = 7.5 kilos, and therefore
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Hence, 90 kilos in the ratio of 2 : 3 : 7
gives 15 kg, 22.5 kg and 52.5 kg.

~ Hope this helps you!
3 0
3 years ago
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