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In a trapezium ABCD, AB and DC are parallel sides and `angleADC = 90^(@)` . If AB = 15 cm, CD = 40 cm and diagonal AC = 41 cm. Then the area of the trape- zium ABCD is:

A

`245" cm"^(2)`

B

`240" cm"^(2)`

C

`247.5" cm"^(2)`

D

`250" cm"^(2)`

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In a trapezium ABCD, AB and DC are parallel sides and angle ADC = 90^@ ,if AB = 15 cm, CD = 40 cm and diagonal AC = 41 cm. Then the area of the trapezium ABCD is एक समलंब में AB और DC समांतर किनारे है और angle ADC = 90^@ है । यदि AB = 15 से.मी., CD = 40 से.मी. और विकर्ण AC = 41 से.मी. है, तो उस समलंब ABCD का क्षेत्रफल बताइए ।

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