PLEASE HELP!

Mathematics

1 answer:

tino4ka555 [31]3 years ago

8 0

Answer:

≈ 1468.59223 in squared

Step-by-step explanation:

1) A=2AB+(a+b+c)h

2) AB= square root of s(s﹣a)(s﹣b)(s﹣c)

3) s=a+b+c / 2

4) A=ah+bh+ch+1 / 2 square root of﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

5) 18·22+18·22+18·22+1 / 2 x the square root of ﹣184+2·(18·18)2+2·(18·18)2﹣184+2·(18·18)2﹣184≈1468.59223

≈ 1468.59223 in squared

Hope this helps :)

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