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Helen [10]
3 years ago
8

Please solve all and work needs to be shown ❤️❤️

Mathematics
1 answer:
Alex73 [517]3 years ago
4 0

1).

a=bh

=(13)(9)

=117in^2

2).

A=1/2h(b1+b2)

=1/2(14)(15+9)

=168cm^2

3).

A=1/2d1d2

=1/2(18)(11)

=99in^2

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