A student was asked to use the formula for the perimeter of a rectangle, p = 2l 2w, to solve for l. the student came up with an
1 answer:
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Step-by-step explanation:
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Remove the unnecessary brackets :
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Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
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Answer:
√20 units.
Step-by-step explanation:
Please see attached photo for diagram.
The other leg of the triangle is x as shown in the attached photo.
Using the pythagoras theory, we can obtain the the value of x as follow:
x² = 4² + 2²
x² = 16 + 4
x² = 20
Take the square root of both side.
x = √20 units
Therefore, the value of the other leg x of the triangle is √20 units
