Question

the acute angles of a right angled triangle are ratio of 4:5. find the size of the smallest angle of the triangle​

Answer 1

Answer:

In right angled triangle one angle is 90°

Let the ratio of angles be 4x and, 5x

ATQ

4x+5x+90=180

9x=180-90

X=90/9

X=10

So,the smallest angle =4x=4×10=40°

Step-by-step explanation:

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