Refer to the attachment
koi h

Step-by-step explanation:

We know that:

Interior angles of a triangle add up to 180 degrees.

The angles are in a ratio of:

1 : 2 : 3

Add the terms of the ratio = 1 + 2 + 3 = 6

Divide it by 180

= 180 / 6 = 30

Now, the first angle is:

= 1 * 30 = 30°

The second angle is:

= 2 * 30 = 60°

The third angle is:

= 3 * 30 = 90°

Since, all the measures of the side are unequal, the triangle is a scalene triangle.

Since, there's a 90 degree measure, this means the triangle contains a right angle so it is also a right angled triangle

Hope this helped!

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

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step-by-step explanation: