Question

please answer this question quickly​

Answer 1

what's the Topic ????

first input topic please

Answer 2

Answer:

Here's your answer.

Step-by-step explanation:

Sum of all angles of triangle = 180 degrees

Therefore 40 + 3c + 4c = 180

40 + 7c = 180

7c = 180 - 40

7c = 140

c = 140/7

c= 20

3c = 20 x 3 = 60

4c = 20 x 4 = 80

Hence the angles of this triangle are = 40, 60, and 80.

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