When hypotenuse is given 4 cm, base is 3 cm and perpendicular is 2 cm. Find out whether it is rights angled
triangle or not.

It's not Right Angled Triangle.

Step-by-step explanation:

By using Pythagoras theorem.

H^2=P^2+B^2

Here p=2,b=3,and h=4.

4^2=3^2+2^2

16=9+4

16 is not equal to 13.

Proved.

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

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b and c

step-by-step explanation: