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marusya05 [52]
3 years ago
15

The pyramid shown has a square base that is 12 inches on each side. It has a surface area of 336 square inches. What is the slan

t height?
Mathematics
2 answers:
blagie [28]3 years ago
7 0
Let b and h represent the length of the side of the base and the slant height, respectively. Then the total surface area is
  A = b² + 4*(1/2)bh
  A = b² +2bh

Substituting the given numbers, you have
  336 = 12² +2·12·h
  192 = 24h . . . . . . . . . subtract 12² = 144
  8 = h . . . . . . . . . . . . . divide by 24

The slant height is 8 inches.
zalisa [80]3 years ago
3 0

Answer:

The slant height is 8 inches

Step-by-step explanation:

your welcome

give me brainliest

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