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lesantik [10]
3 years ago
8

A rectangle has an area of 48 cm².

Mathematics
2 answers:
malfutka [58]3 years ago
7 0

Answer:

144

Step-by-step explanation:

You need to add 48+48+48=144

hope its correct because its just a guess...

Ad libitum [116K]3 years ago
3 0
3x^2 = 48
Find x
x=4
Hence length is 12

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3 years ago
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DanielleElmas [232]

Answer:

Step-by-step explanation:

Given expression is,

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\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})=\frac{1}{2}(\frac{1}{\text{tan}\frac{A}{2}}-tan\frac{A}{2})

                         =\frac{1}{2}(\frac{1-\text{tan}^2\frac{A}{2}}{tan\frac{A}{2}})

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3 0
3 years ago
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