Britton rotated trapezoid ABCD 180° on the coordinate plane. If angle B is 20° and angle D is 90°, what is the degree measuremen

Question

marta [7]

4 years ago

10

Britton rotated trapezoid ABCD 180° on the coordinate plane. If angle B is 20° and angle D is 90°, what is the degree measuremen

t of angle B′?

Mathematics

2 answers:

MariettaO [177] · Answer 1 · 2021-11-28T11:54:32+03:00

MariettaO [177]4 years ago

8 0

Answer:

B' is 20 degrees

Step-by-step explanation:

the angle does not change when its rotated it will only change when its dilated when rotated the (x,y) symbols change not the angle measurements

olasank [31] · Answer 2 · 2021-11-28T10:28:04+03:00

Answer:

The answer is 20 degrees

Step-by-step explanation:

A trapezoid is a quadrilateral with four angles and the sum of the four angles is 360 degrees.

Britton rotated the trapezoid ABCD 180º, but we were not told that he tampered with the angles size or shape, we can now agree that it is still the same trapezoid that was rotated without any alterations in angles, size and shape.

Since we've been given that the angle B is 20º, and the measurement was not altered when rotating the trapezoid. Therefore the angle B' will also be 20º.

I hope this helps.