In the following figure, if AB ǁ CD, then find the measure of PCD and CPD.

Explanation:

Given

See attachment

Required

Determine PCD and CPD

First, we need to calculate CPD

Since DPA is a straight line and CPA = 100;

We have that:

--- angle on a straight theorem

Substitute 100 for CPA

Subtract 100 from both sides

Next, we calculate PCD

We have that:

 --alternate angle

In triangle PCD

--- angles in a triangle

Where

So, we have:

Subtract 136 from both sides

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

b.

hope this : )