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3 years ago

Find the exact area of ABC

Mathematics

1 answer:

Gala2k [10]3 years ago

8 0

Answer:

A = 18 $\sqrt{3}$ sq meters

Step-by-step explanation:

find BD, can use altitute rule:

3 / BD = BD / 9

BD² = 27

BD = $\sqrt{27}$ = 3 $\sqrt{3}$

Area of ΔABC = 1/2 · (3+9) · 3 $\sqrt{3}$

A = 6 · 3 $\sqrt{3}$

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3 years ago

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Step-by-step explanation:

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