What are the remaining angle measures if that figure is to be a parallelogram? what are angels b c and d i'd angle a is 79?

B is 101°, C is 79° and D is 101°

Step-by-step explanation:

C is 79° because opposite angles are equal and A is an opposite angle. B and D are 101° because angles in the same side of a parallelogram equal to 180°.

m∠B =  

✔ 101

m∠C =  

✔ 79

m∠D =  

✔ 101

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -