Use angles shown to make other angles ... Please help.. I know I have a lot of these but help ...

The right answer is <DEF and <GHJ.

EXPLANATION:

if we add 40 degree and 50 degree then it will result to 90 degree .

Right angles are those angles which is exactly 90 degree.

Hope it will help you

-pragya~~

Step-by-step explanation:

angles GHJ and DEF

50+40=90

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk