Помогите!!!!!!!!!!!!!!!

Question

Помогите!!!!!!!!!!!!!!!

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Answer 1

98.S=(7+9)/2*8=4*16=64
S=(5+11)/2*6=48
100.S=14/2*6=42
S=16/2*6=48
101.tg45=x/8, x=8,s=10*8+8*8/2=80+32=112
b. S=10*15+10*10/2=200