15. Of the three angles of a triangle, 1 point
the second one is one third of the first
and the third angle is 26 degrees
more than the first angle. Find the
smallest of all the three angles of the
triangle.
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Answer:
FOR THIS SUM THERE ARE TWO METHODS I GIVE U BOT U CHOOSE YOUR WHICH LOOKS YOU EASY
HARD METHOD:
Let the first angle =∠A =x
the second angle = ∠B = 1/3x
and the third angle = ∠C = x + 26°
∠A + ∠B + ∠C = 180°
x + 1/3x + x+26° = 180°
7x/3 + 26° = 180°
7x/3 = 180° - 26°
7x/3 = 154°
x = 154° x 3/7
x = 66°
∠A = x= 66°
∠B =1/3 x = 1/3 x 66° = 22°
∠C = x + 26° = 66°+ 26° = 92°
EASY METHOD:
A +B+C=180
B=1/3×A
C=26+A
A/3+26+A+A=180
2A+A/3=154
7A/3=154
7A=462
A=66
B=22
C=92
BOTH ARE SAME MARK BRAINLIEST I GAVE U 2 METHODS THAT'S WHY
Step-by-step explanation:
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