Question

The first angle of a triangle is 8tº, the second angle is 3tº, and the third angle is 9tº. What is the measure of 9tº ?


a
20º


b
180º


c
81º


d
89º

Answer 1

we know by angle sum property of the traingle

3t + 9t +8t = 180

20t = 180

t = 9

now 9t = 9×9 = 81°

Hence option (c)

thank you

Answer 2

Answer:

hey bro it's a good question

Step-by-step explanation:

8t+3t+9t =180. (Angle sum prop.)

so t= 9°

then 9t=81°