How do i find angles in a straight 180 degree line with a 90 degree angle and 2 unknown angles?

the two unknown angles are 45 degrees.

Step-by-step explanation:

180-90=90

90/2=45

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

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the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps