FALSE
The triangle whose one angle is 90° and the sum of the other two angle is 90° is called right-angle triangle.
From this above comcept it is clear that in right-angle triangle one angle is 90°.
The sum of other two angle is 90°.
i.e. α+β=90°
⇒α<90° and β<90°
⇒α and β is acute angle.
From above it clearly meantioned that in right-angle triangle there is both an acuteangle and a right angle.
Therefor the asked statement is False.
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There is a 50% chance that the first color I see will be green color.
Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
Given, The traffic light on Main Street follows a cycle. It is green for 30 seconds, yellow for 5 seconds, and red for 25 seconds.
∴ The sample space N(S) = 60.
So, The probability that the first color I see is green is P(G) = N(G)/N(S).
= 30/60.
= 1/2.
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