ВС=а=25, АС=b=29, AB=с=36
Решение:
1) V=Sосн * H
Sосн =
PΔABC=25+29+36=54+36=90 (дм)
p = 90/2=45° ( полупериметр )
2) Sосн =
V=360*50=18.000 (дм³)
3) Sбок=Pосн * H = 90*50 = 4500 (дм)
Sполн = 2Sосн + Sбок = 360*2+4500=5220 (дм²)
Ответ: 18000 дм³ ; 5220 дм²
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Answers & Comments
ВС=а=25, АС=b=29, AB=с=36
Решение:
1) V=Sосн * H
Sосн =
PΔABC=25+29+36=54+36=90 (дм)
p = 90/2=45° ( полупериметр )
2) Sосн =
V=360*50=18.000 (дм³)
3) Sбок=Pосн * H = 90*50 = 4500 (дм)
Sполн = 2Sосн + Sбок = 360*2+4500=5220 (дм²)
Ответ: 18000 дм³ ; 5220 дм²