Two angles are in ratio 4:5 .if the sum of these angles equal to the third angle find the angles of the triangle
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Answer:
40degree,50degree,90degree
Step-by-step explanation:
4x+5x=180-(4x+5x). -> let the angles be 4x and 5x
9x=180-9x
18x=180degree
x=10degree
Substituting value of x
40degree
50degree
90degree
It is a right angled triangle
Hope it helps you
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Let the measure of two angles be 4x and 5x and the third one is ( 4x + 5x ).
We know that ;
Sum of angles of triangle = 180°
⇒ 4x + 5x + 4x + 5x = 180
⇒ 18x = 180
⇒ x = 180/18
⇒ x = 10
Therefore, the angles are ;
4x = 4 * 10 = 40°
5x = 5 * 10 = 50°
9x = 9 * 10 = 90°
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