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प्रश्न
For finding AB and BC with the help of information given in the figure, complete following activity.
AB = BC .......... 
∴ ∠BAC =
∴ AB = BC = × AC
= × `sqrt8`
= × `2sqrt2`
=
उत्तर
AB = BC ...(Given)
∴ ∠BAC = 45°
∴ AB = BC = `1/sqrt2` × AC
= `1/sqrt2` × `sqrt8`
= `1/sqrt2` × `2sqrt2`
= 2
संबंधित प्रश्न
ABCD is a rectangle whose three vertices are B (4, 0), C(4, 3) and D(0,3). The length of one of its diagonals is
(A) 5
(B) 4
(C) 3
(D) 25
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that :
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`(ii) AF^2 + BD^2 + CE^2 = AE^2 + CD^2 + BF^2`
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