Question

In the figure, A ABC is a right angles at B. If AB= 9 cm AC= 15 cm, and D and E
the mid points of AB and AC respectively calculate.
The length of BC
The area of trapezium BCED
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Answer 1

Answer:

bc=12. area=40.5

Step-by-step explanation:

bc=√ac^2-ab^2

=√225-81=√144=12

de=√ae^2-ad^2=√36=6

area=4.5*6+1/2*4.5*6=13.5+27=40.5

Answer 2

Answer:

the length of bc= 12cm

and the area of trapezium BCED = 40.5