reginapokorny
17.04.2020 •
Mathematics
ABCD is a square. BD = 21.21 in. Find the perimeter to the nearest whole number.
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Ответ:
60 in
Step-by-step explanation:
BD² = s² + s²
21.21² = 2s²
s² = 224.93205
s = 14.997734829
Perimeter = 4s
= 59.990939316
Ответ: