Question

in a triangle if the second angle is 20percent more than the first angle and the thied angle is 20peecent less than the first then find the third angle​

Answer 1

Answer:

Your three angles total 180, right?

s = f + 20

t = 2s = 2(f + 20) = 2f + 40

f + f + 20 + 2f + 40 = 180

4f + 60 = 180

4f + 60 - 60 = 180 - 60

4f = 120

4f/4 = 120/4

f = 30

s = 30 + 20 = 50

t = 2(50) = 100

Step-by-step explanation:

Answer 2

Answer:

Required angle(3rd angle) = 48°