Question

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С
(2x + 35)
5. Two adjacent angles of a parallelogram are (4x - 15)° and (5x – 3)º.
Find the measure of all angles of the parallelogram.
6. An angle of a parallelogram is 20° less than its adjacent angle.
Find the measure of all its angles.
7. In Figure 3, ABCD is a parallelogram. Find the measure of x and y.
(3x + 15)º (2y + 5)%%
A
B
Fig. 3
Tuo adiacent andles of nor11.laromre in the roti 5. Din the
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Answer 1

Step-by-step explanation:

5th

(4x-15)+(5x-3)=180

{addjacent sides make up 180 degree}

9x-18=180

x=22

so 4x-15=73 degree

5x-3=107 degree

6th

let the angle be x degree

2nd angle be x-20

{adjacent angles make up 180 degree}

x+x-20=180

2x=200

x=100

first angle 100 degree

2nd angle 80 degree