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Maths, Addmaths and Statistics: Post your doubts here!

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two way stretch :eek:
and in part a scale factor -1 say kia hoga in enlargement? i thought it was rotation of 180 degrees ..
both enlargement with scale factor -1 and rotation of 180 degrees have the same matrix:
/-1 0\
\0 -1/
 
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ABC kitna hai ? 73 naa ..
AEC kitna hai 146 naa ?

Angle at center = 2 angle at circumference .. ye property bun rahi hai ??
AEC jo hai woh circle 2 kay ander hai .. hence Circle I ka center Circle 2 kay ander hai ..
ha ab bolo am back .. :D
 
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point E small circle ka centre haI,
q k angle at centre is twice the angle at circumfernece ....
circumfenrce per 73 hai and centre per 146 that is double ..:)

koi aisa question aaya hai kabhi jis mein tmhein problem hui ho ? :p Link me some ov them!!
 
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Perimeter = 2 lines + arc small semi circle + arc large semi circle

2 lines = 40 cm
Small semi circle arc = 2pie x r x 1/2 x 1/4 = 5pie/2 r= 10
large semi circle arc = 2 pie x r 1/2 x 1/4 = 15 pie /2

perimeter = 40 + 10 pie = 71.4cm ..
ryt. .?

40+10 pie pe answer chorrna hoga i think .. cuz P1 hai yeh ..
 
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