alleryꯑꯣꯏꯒꯅꯤ꯫ 30 m by 20 m ꯒꯥꯔꯗꯦꯟ ꯑꯃꯒꯤ ꯑꯀꯣꯌꯕꯗꯥ ꯂꯩꯕꯥ ꯌꯨꯅꯤꯐꯣꯔꯝ ꯃꯄꯥꯅꯒꯤ ꯂꯝꯕꯤ ꯑꯃꯅꯥ 216 m² ꯀꯚꯔ ꯇꯧꯏ; ꯃꯁꯤꯒꯤ ꯄꯥꯛ ꯆꯥꯎꯕꯥ?
A3 m
B1 m
C4 m
D2 m
Answer & Solution
Correct answer: D. 2 m
ꯑꯣꯏꯒꯅꯤ꯫
ꯄꯥꯛ ꯆꯥꯎꯕꯥ xꯒꯤꯗꯃꯛꯇꯥ, (30 + 2x)(20 + 2x) − 600 = 216 ꯄꯤ꯫
(x − 2)(x + 27) = 0, ꯃꯔꯝ ꯑꯗꯨꯅꯥ x = 2 ꯃꯤ.
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