Sam rotated parallelogram abcd 90° clockwise around the origin. if angle a is 130° and angle b is 50°, what is the degree measurement of angle a'?

The degree measurement of angle A' is 130°.

Step-by-step explanation:

Given information: ∠A = 130° and ∠B = 50°.

Sam rotated parallelogram ABCD 90° clockwise around the origin. If angle A is 130° and angle B is 50°.

Rotation is a rigid transformation, it means the size and shape of a figure remains same after rotation. In other words we can say that preimage and image are congruent.

Corresponding parts of congruent figures are congruent.

Therefore the degree measurement of angle A' is 130°.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.