Math, asked by sameekcchyakarkee, 3 months ago

find the perimeter of the triangle whose sides are in the ratio 7:24:25 and area 84cm2

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Answered by Anonymous

5

Answer:

Derivation of Lens Formula Consider a convex lens with an optical center O. Let F be the principle focus and f be the focal length. An object AB is held perpendicular to the principal axis at a distance beyond the focal length of the lens. ... The above equation is known as the Lens formula.

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