When 2 lines cross, 2 pairs of vertical angles are formed. what is the sum of all 4 angles? . a.. 180°. b.. 270°. c.. 360°. d.. 540°.

see the attached figure to better understand the problem

In the figure

Angle A and Angle B are vertical angles

so

∠A=∠B

Angle C and Angle D are vertical angles

so

∠C=∠D

Angle A and Angle C are supplementary angles

so

∠A+∠C=

Angle D and Angle B are supplementary angles

so

∠D+∠B=

therefore

∠A+∠C+∠D+∠B=

the answer is the option C

answer: c i think

step-by-step explanation:

answer: yard ramps with a level off platform are typically 36 feet long. truck, rather than at an angle, enabling access to those pallets at the very back of the truck. if you are using your yard ramp to convert a loading dock into a drive-in door, we even at 60 inches (5 feet) high and a 30 foot ramp, the slope of the ramp will be less

step-by-step explanation: