tell me the answer of ques 33
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(i)249.41cm
(ii)176cm
Hence, square encloses largest area
(ii)176cm
Hence, square encloses largest area
mayank175:
yes
but please check whether my answers are correct or not
I am realy sorry answer (i) was wrong I got it in my dream
When the wire is in the form of square, it's area =576cm2 i.e. side x side = 576 so side =24cm
when bent into equilateral triangle side =24+(24 ÷ 3) = 32 area of triangle by hearon's formula
= √(s) x(s- a) x. (s- b) x (s -c)
S = 32 x 3 ÷ 2 = 48 area = √((48) × (48-32) × (48-32) ×(48-32) =256
=256 √3
or 443. 4cm2
When bent into rectangle l = 4cm & b = (20-4)+24 = 44 are a of rect. = l x b = 4 x 44 = 176cm2
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ANSWER
......
1ST ANSWER = 249. 41 CM
2ND ANSWER = 176 CM
......
1ST ANSWER = 249. 41 CM
2ND ANSWER = 176 CM
good try but answer is wrong yors and mine too. the correct answer is (i) 443.4cm2 and answer of (ii)176cm2
check the procudure in the comment
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