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Masteriza [31]
3 years ago
15

The perimeter of a rectangle is 84 cm. if the length is 25 cm, how wide is the rectangle?

Mathematics
1 answer:
Dominik [7]3 years ago
6 0
P = 2(L + W)
P = 84
L = 25
now sub

84 = 2(25 + W)
84 = 50 + 2W
84 - 50 = 2W
34 = 2W
34/2 = W
17 = W <===  the width is 17 cm
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Answer:

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Step-by-step explanation:

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we can now insert the values into the formula

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cross-multiply

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We will now proceed to find side EF

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Using the sine rule to find the side EF

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ange D = 89 degrees

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we can now proceed to insert the values into the formula

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cross-multiply

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divide both-side of the equation by sin 49°

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This implies that length EF = 13.248

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