Question

त्रिभुज के दो कोणों का योग 80° है उनका अंतर 20° है तो तीनों कोण
बतावे?
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Answer 1

Step-by-step explanation:

Let's angles are x, y and z

so

x+y+z=180 ---------1

According to question

x+y=80----------2

x-y=20-----------3

from 2 and 3 we get

2y=100

y=100/2=50

put the value of y in 2

x+50=80

x=80-50=30

now put the value of X and y in 1 we get

x+y+z=180

30+50+z=180

z=180-80=100

so all three angles are 30,50,100

I think it is helpful for you

Answer 2

Answer:

one side = x

second side=x-20

so, x+x-20=80

2x=80+20

2x=100

x=100/2

x=50

x-20=50-20

=30

sum of both sides =80

total sum of a triangle =180

so,third side =y

y+80=180

y=180-80

y=100

first side =50°

second side = 30°

third side= 100°