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erik [133]
3 years ago
11

PLEASE HELP ME GUYS!!

Mathematics
1 answer:
Softa [21]3 years ago
8 0

Answer:

n=20

Step-by-step explanation:

S_{n} =\frac{n(a_{1}+a_{n})}{2}\\\\1260 =\frac{n(25+101)}{2} \\\\n = 20

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Step-by-step explanation:

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Complete question :

A landscaper drew a scale drawing of a rectangular yard using the scale, , before beginning to work on the yard.

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Answer:

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Step-by-step explanation:

From the diagram :

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