Ответ:
а=9=(3+3+3)
b=7=(1+2+4)
a1=3
b1=1
a2=3
b2=2
a3=3
b3=4
S=(9×7)-(3×1)-(3×2)-(3×4)=63-3-6-12=63-21=41
4)
a=9
b=4
S=(a×b)÷2=(9×4)÷2=36÷2=18
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
а=9=(3+3+3)
b=7=(1+2+4)
a1=3
b1=1
a2=3
b2=2
a3=3
b3=4
S=(9×7)-(3×1)-(3×2)-(3×4)=63-3-6-12=63-21=41
4)
a=9
b=4
S=(a×b)÷2=(9×4)÷2=36÷2=18