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grin007 [14]
3 years ago
12

Work out the area of a rectangle with base 18mm and perimeter 38mm

Mathematics
1 answer:
frez [133]3 years ago
5 0

Answer:

684 mm squared

Step-by-step explanation:

Very simple. It's 18mm multiplied by 38 mm.

18 mm * 38 mm = 684 mm2

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Find the cos A and tan B to four decimal places. URGENT
Nikolay [14]

cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

<u>Pythagoras theorem</u>

hypotenuse^{2} = adjacent^{2} + opposite^{2}

hypotenuse^{2} = 8^{2} + 5^{2}

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<u>Formula:</u>

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b) Tan B

<u>Data: </u>

Opposite = 8

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<u>Formula:</u>

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Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

  • brainly.com/question/5013374
  • brainly.com/question/9532142

#LearnwithBrainly

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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7 0
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