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Bra1nPowers
02.09.2019 •
Mathematics
The area of the regular octagon is 10.15 cm2.
what is the measure of the apothem, rounded to the nearest hundredth of a centimeter?
1.27 cm
1.75 cm
2.33 cm
2.54 cm
Solved
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Ответ:
2. The octagon can be divided into 8 congruent (identical) isosceles triangles. One of them is AOB.
3. Area(triangle AOB)=10.15/8=1.27 (cm squared)
4. Area(triangle AOB) is also 1/2*MO*AB
so 1.27=1/2*MO*1.45
MO=
Ответ: