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aleksandr82 [10.1K]
3 years ago
14

HELP ME. I need help ASAP. I need it fast pls

Mathematics
1 answer:
Harrizon [31]3 years ago
3 0

Step-by-step explanation:

to find slant height.

  • l²=(a/2)²+h²
  • l²=2.25+36
  • l=√38.25
  • l=6.18

total surface of square base pyramid =a²+2al

  • 2.25+2×1.5+6.18
  • 11.43 cm²

hope it helps.

<h3>stay safe healthy and happy.</h3>
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