Q: In this parallelogram the measure of b is twice the measure of a what is the measure of b?

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In a parallelogram adjacent angles are supplementary, so angles are 75 degrees (A & C) and 105 degrees (B & D).

360

A >= 2B (A is twice as many as B, or greater than twice of B)

They measure 105 degrees each.

It can, but it doesn't need to. If it does, then besides being a parallelogram,it's also a rectangle, and it can also be a square but it doesn't need to be.A parallelogram always has two pairs of equal angles.

Related questions

The measure of A is 60.

120

60

120

The measure of D is 120.

In a parallelogram adjacent angles are supplementary, so angles are 75 degrees (A & C) and 105 degrees (B & D).

105

In a parallelogram adjacent angles are supplementary, so angles are 75 degrees (A & C) and 105 degrees (B & D).

b = 2a

The adjacent angles of a parallelogram are supplementary. This means that angle A + angle B = 180 deg.Since angle B = 2*angle A, then angle A + 2*angle A = 180 deg ie 3*angle A = 180 deg so that angle A = 60 deg.

105 degrees