Question

I think a,b,c might be correct but I would appreciate if you could check it and d and e I dont understand what to do.

Answer 1

Part c

AB= AC

3x+40 = 5x+10

Solving for x we got:

40-10 = 5x-3x

30= 2x

x= 15

then we can find:

BC= 15+30=45

Part d

For this case the congurent angles are:

< ABC= < ACB

Part e

4x +10 +4x +10+ 6x +48= 180

14x +68 = 180

14x = 180-68

14x = 112

x = 112/14 =8

m< ABC= 4*8 +10 = 32+10 = 42