S=1/2(a+b)h
2S=h(a+b)
2S
h= ------
a+b
2*154 308
h= --------- = ------- = 14 - высота
10+12 22
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S=1/2(a+b)h
2S=h(a+b)
2S
h= ------
a+b
2*154 308
h= --------- = ------- = 14 - высота
10+12 22