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icang [17]
2 years ago
12

Can someone please help me work out this question i really don't understand ​

Mathematics
2 answers:
nadya68 [22]2 years ago
7 0

Answer:

108 cm^2

Step-by-step explanation:

rectangle   + 2  triangle = total area

L x W          + 2    *  1/2 base * height   = total area

(5x12)          + 2    *  1/2 * 12 * 4    = total area

  60              +   48    = 108 cm^2

aleksandr82 [10.1K]2 years ago
5 0

Answer:

108 cm²

Step-by-step explanation:

To do:

1. find area of rectangle      2. find area of triangles       3. add them together

area of a rectangle = bxh = 5x12 = 60

area of triangle = (bxh)/2 = (12x4)/2 = 24

60+24+24=108

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Tems11 [23]
<h3>Answer: 10.99</h3>

Work Shown:

Angle B = 20 is the reference angle

AC = 4 is the side opposite this reference angle

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tan(angle) = opposite/adjacent

tan(B) = AC/BC

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x = 10.9899 approximately (make sure your calc is in degree mode)

x = 10.99 rounding to two decimal places

BC = 10.99

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3 years ago
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Darina [25.2K]
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7 0
3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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