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meganwintergirl
02.10.2019 •
Mathematics
The diagonals of a trapezoid are perpendicular and have lengths 8 and 10. find the length of the median of the trapezoid.
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Ответ:
( a + b )² = 10² + 8² ( where a and b are the bases of a trapezoid )
( a + b )² = 100 + 64
( a + b )² = 164
a + b = √164
a + b = 12.8
We don`t need to find a and b, because we have a formula for the length of the median which is:
m = ( a + b ) / 2
m = 12.8 / 2
m = 6.4
Ответ:
747,26
Step-by-step explanation:
1000=x (1+0.06)^5
1000/((1+0.06)^5)=x