Question

plz help me in solving this question. In the figure, ∠BAD = 90°. (1) Given that AB= 36cm and AD= 48cm, find the length of BD. (2) Given further that BC= 87cm and CD= 63cm , show that ΔBCD is a right-angled triangle. plz give me detailed and step by step answer.

Answer 1

Answer:

x+y=4

x-y=2

add equation x+y=4 and x-y=2

x+y=4

x-y=2

---------

2x=6

x=6/2

x=3

put x=3 in equation x+y=4

x+y=4

3+y=4

y=4-3

y=1. .