(1) In a triangle, the measure of exterior angle is equal to the sum of the measure of interior opposite angles. |
(2) The sum of the measures of the three angles of a triangle is\[{{90}^{o}}\]. |
(3) A perpendicular is always at \[{{90}^{o}}\] to a given line or surface. |
A)
(1) (2) (3) T T F
B)
(1) (2) (3) T F F
C)
(1) (2) (3) T F T
D)
(1) (2) (3) F T F
Correct Answer: B
Solution :
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