Question

1. The three angles of a quadrilateral are in the ratio of 2 : 3:4 respectively. The sum of 1st and th
equal to 180°. Find all the angles of the quadrilateral.
5. Two angles of a quadrilateral are 70° and 40° respectively and the remaining two angles are in the ratio 2:3.
Find the measure of each angle of the quadrilateral.
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Answer 1

Answer:

Here is the answer

Step-by-step explanation:

we know that 2x+3x+4x=180

9x=180

x=180/9

therefore, x=20

first angle=2*20=40

second angle=3*20=60

third angle=4*20=80

Answer 2

question number 5)

Let the two unknown angles be 2x and 3x

sum of all the angles of Quadrilateral is 360

2x + 3x +70 + 40 =360

5x=360-110

5x =250

x=50

substituting x=50 in 2x and 3x we get

the two angles as 100 and 150

so all the angles are 100,150,70,40

100+150+70+40=360