Of the three angles of a triangle, one is twice the smallest and another one is thrice the smallest. Find the angles. ( Don't spam)
Answers
Answer:
The sum of the right angled triangle is 180 degree. One of the angles of a right angled triangle is always 90 degree.
So we need to find the other two angles.
Trial 1: If 90/2= 45 is the smallest angle,then the other angle should be 45×3 = 135. That isn't possible as the sum of all the angles adds up to 180.
Trial 2: If 90/3=30 is the smallest angle, then the other angle should be 30×2=60.
Sum of all angles= 60+30+90=180.
This holds true.
Hence the smallest angle is 30 degree. Hence we can also say it is a right angled triangle as it has one angle twice the smallest and another thrice the smallest
Answer Is:-
Consider ∠C is the smallest angle among ∠ABC.
According to the question,
We can write it as,
∠A=2∠C and ∠B=3∠C
We know that the sum of all the angles in a triangle is 180∘
.
So we can write it as,
∠A+∠B+∠C=180∘
By substituting the values,
2∠C+3∠C+∠C=180∘
By addition,
6∠C=180∘
By division,
∠C=180/6
∠C=30∘
Now by substituting the value of ∠C we get,
∠A=2∠C=2(30∘)=60∘
∠B=3∠C=3(30∘)=90∘
Therefore, ∠A=60∘,∠B=90∘ and ∠C=30∘.