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aliya0001 [1]
2 years ago
8

PLZZZ ANSWER!! Answers for points will be reported.

Mathematics
1 answer:
Lisa [10]2 years ago
7 0

Answer:

  • 272.6

Step-by-step explanation:

This is an isosceles triangle with base of 21 and sides of 28.

<u>Area formula</u>

  • A = 1/2bh

<u>Find height:</u>

  • h = \sqrt{28^2 - (21/2)^2}  = \sqrt{673.75} = 25.96

<u>Area:</u>

  • A = 1/2(25.96)(21) = 272.6 (rounded)
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