Of the three angles of a triangle, one is twice the smallest and another one is thrice the smallest. Find the smallest angle. *
options are
30⁰
60⁰
90⁰
45⁰
Answers
Answered by
1
Answer:
30° is the answer
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Answered by
1
Answer:
30°
we know that, angle A + angle B + angle C = 180°
so, Let the no. be x°
then,
second no.= 2x
third no.= 3x
then,
2x + 3x + x = 180°
5x +x = 180°
6x= 180°
x= 180/6 = 30 °
now,
second no. = 2x = (30 ×2) = 60°
third no. = 3x = (30× 3 ) = 90°
30° + 90° + 60° = 180°
hence, proved..
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