3 years ago

PLSSS HELPP!!!REAALLY need it its'overdue

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

6 0

Answer:

2) slant height=15

surface area= $864cm^{2}$

Step-by-step explanation:

$half base ^{2}$ x $height^{2}$

$9^{2} +12^{2}$

81+144

=225

$\sqrt{225}$

=15

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