Answer:
In ∆ABD and ∆ACD
<BAD =<CAD ( each are half of <A )
<D=<D ( each equal to 90°)
AD = AD ( common)
So ∆ ABD is congruent to ∆ ACD.
Then AB =AC (by C.P.C.T)
Hence,∆ABC is an iso - sceles triangle.
It would be C as the answers
Answer:
a) The profit will be: 
b) Since the profit is -9500 (negative) so, company will not gain any profit if they produce 300 bicycles.
Step-by-step explanation:
Cost of Bicycles= 
Revenue generated = 
Find a polynomial that represent profits
The formula used for finding profit is:

So, the profit will be: 
If the company can produce bicycles y= 300
The profit will be:

Since the profit is -9500 (negative) so, company will not gain any profit if they produce 300 bicycles.