State 'T' for true and 'F' for false.
(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°.
(3) A perpendicular is always at 90° to a given line or surface.
--------(1) (2) (3)
A T---T---F
B T---F---F
C T---F---T
D F---T---F
answer should be c
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Class : Class 7
The problem is there in some answers but nobody answers the queries of the people I have come across.