Question

the length of the three sides of a quadrilateral is 10cm,20cm and 30cm then centi ..... please give me answer I give back bairlest​

Answer 1

Step-by-step explanation:

area △ABC=

2

1

×BC×AD=

2

1

×20×5=50cm

2

Again, area △ABC=

2

1

×AB×CE

50=

2

1

×10×h

⇒h=

10

100

=10cm

∴ Length of altitude on shorter side =10cm

Area of △=50cm

2