Question

one angle of a triangle maesure 90 and the other two are in the ratio 2:4 find these angles
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Answer 1

30 angle second is 60angle

Explanation:

sum of all angle of triangle is 180 one is 90 so 180-90=90 = 90=2:4

90/6 = 15

15* 2 =30 =second angle

15*4 = 60 =third angle

Answer 2

Answer:

Second angle of the triangle = 2(15) = 30°

Third angle of the triangle = 4(15) = 60°

Explanation:

Sum of all angles of a triangle = 180° (Angle sum property)

First angle of the triangle = 90° (given)

Let second angle of the triangle = 2x

third angle of the triangle = 4x

According to question ,

90° + 2x + 4x = 180°

= 90° + 6x = 180°

= 6x = 180° - 90°

= 6x = 90°

= x = 90/6

= x = 15°

Therefore , second angle of the triangle = 2x = 2(15) = 30°

Third angle of the triangle = 4x = 4(15) = 60°