Question

the sides of quadrilateral taken in oder are 48cm,46cm,40cm and 9cm respectively the angle between the last two sides is a right angle find area of quadrilateral​

Answer 1

Answer:

MATHS

The sides of quadrilateral taken in order are 9m,40m,15m and 28m. If the angle between the first. two sides is a right angle find its area.

December 20, 2019avatar

Shanmugam Padigala

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ANSWER

Say AB=9m,BC=40m,CD=15m,DA=28m

As given that △ABC is a right angle triangle then

AC

2

=9

2

+40

2

AC=41m

Area of △ABC=

2

1

×9×40=180m

2

,

In △ACD,

Perimeter s=

2

15+28+41

=42

Area of △ADC=

s(s−15)(s−28)(s−40)

Area of △ADC=

42(42−15)(42−28)(42−40)

=126m

2

,

Area of ABCD=Area of △ABC+Area of △ACD=180+126=306m

2

.

Answer 2

Answer:

area = 3434m2

Step-by-step explanation:

34534579