Question

BD is a diagonal of a quadrilateral ABCD in which AM / BD and CN / BD. find area of a quadrilateral ABCD, if BD =40, AM = 20 and CN = 15.​

Answer 1

Answer:

ANSWER

ar(quad. ABCD)=ar(△ABD)+ar(△BCD)

ar(quad. ABCD)=

2

1

(BD×AM)+

2

1

(BD×CN)

ar(quad. ABCD)=

2

1

BD×(AM+CN)

solution

Step-by-step explanation:

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