# User Forum

Subject :IMO    Class : Class 7

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

## Ans 1:

Class : Class 3
yes..... The answer is C however, it has given the solution wrong.

## Ans 2:

Class : Class 8
SURFACE MIGHT BE CURVED RIGHT??? SO ANS IS C

Class : Class 9

## Ans 4:

Class : Class 7
The problem is there in some answers but nobody answers the queries of the people I have come across.

Class : Class 9

Class : Class 9

## Ans 7:

Class : Class 8
yes everyone the answer is c

Class : Class 10

## Ans 9:

Class : Class 5
the third option is right!!!!!

## Ans 10:

Class : Class 9
Might be a technical problem with this question

## Ans 11:

Class : Class 8
Can someone explain the problem

## Ans 12:

Class : Class 10
Dont worry the answrr is c

## Ans 13:

Class : Class 7
there is a problem with the question

## Ans 14:

Class : Class 8
yes the answer is c, there is a technical issue

## Ans 15:

Class : Class 9
yes the answer is C obviously

## Ans 16:

Class : Class 8
sof never responds :[

Class : Class 8

## Ans 18:

Class : Class 7
its definitely c..

Class : Class 7

## Ans 20:

Class : Class 8
Agreed. The answer is definitely C.

## Ans 21:

Class : Class 8
u know what perpendicular is right?c is answer

Class : Class 8

Class : Class 4

Class : Class 10

## Ans 25:

Class : Class 7
Answer c is right but they aren't responding

## Ans 26:

Class : Class 8
guys!!!! the answer is C....!!!!!!!!!..........it is so obvious.

## Ans 27:

Class : Class 7
its definitely c..

## Ans 28:

Class : Class 9
ans is C, They r wrong!!!

## Ans 29:

Class : Class 8
How can the answer be b??

## Ans 30:

Class : Class 8
Obviously yeah the answer is C

## Ans 31:

Class : Class 8
The answer is C for sure.

Class : Class 10
That's what