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Emiann222
15.08.2021 •
Mathematics
FIRST -CORRECT- ANSWER WILL GET BRAINLIEST!!
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A. 2√2
B. 2
C. 4
D. √2
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Ответ:
Explanation
I forgot sorry
Mark brainliest please
Ответ:
Step-by-step explanation:
An apothem is a perpendicular drawn from the centre of the triangle to one of its sides.
The three apothems OD, OE, and OF divide ∆ABC into six smaller congruent triangles.
1. Area of ∆OCD
CotOCD = OD/OC
cot30 = CD/6
√3 = CD/6
CD = 6√3
A= ½bh
A = ½ × 6√3 × 6 = 18√3 in²
2. Area of ∆ABC
A = 6 × area of ∆OCD = 6 × 18√3 = 108√3 in²