Question

Solve question no. 20

Answer 1

for these type of questions you have to read carefully then think about possibilities then solve these problems.

Answer 2

Answer:

Step-by-step explanation:

Let one acute angle be x.

So, second is (2/3)x=(2x)/3.

Third angle is 90° as it is a right triangle.

According to angle sum property of a triangle, sum of all 3 angles of it is 180°.

So,

90°+x+(2x)/3=180°

Taking 3 as LCM in LHS,

(270°+3x+2x)/3=180°

Transferring 3 to RHS,

270°+5x=180°×3

270°+5x=540°

5x=540°-270°

5x=270°

x=270°/5

x=54°

Hence first angle=54°.

And second angle=(2×54°)/3.

second angle=108°/3.

second angle=36°.

Hope it helps you.

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