How to find the measure of a missing angle

79°

Step-by-step explanation:

Sum of all angles in a quadrilateral is always 360°.

So,

B+C+D+E=360

80+100+101+E=360

281+E=360

E=360-281

E=79

Hope this will help:-)

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .