Question

In the given fig , abcd is a quadrilateral prove that area of quadrilateral abcd = half *bd*(am+cn),where am and cn are perpendicular on digonal bd

Answer 1

Area of triangle ABD = 1/2 * BD * AM

area of triangle CBD = 1/2 * BD * CN

total area of quadrilateral = Area (tri ABD ) + Area ( tri CBD )

= 1/2 * BD * (AM + CN )

pls mark as Brainliest