Question

UWU TULUI UPPosle dugles Is Y
Ihen
PLAN
the second interior opposite angle is
A) x + y
B) x - y
C) y - x
D) 180 - *
11. In AABC, if AB = AC and BC is produced to D such that ACD = 100° then ZA =
A) 20°
B) 40°
C) 60°
D) 80°
12. If two acute angles of a right triangle are equal then each acute angle is ....
A) 30°
B) 45°
C) 60°
D) 90°
13. An exterior angle of a triangle is equal to 100° and two interior opposite angles are equal
Each of these angles is
A) 75°
B) 80°
C) 40°
D) 50°
14. If the sides of triangle are produced in order, then the sum of three exterior angles so
formed is ..
A) 90°
B) 180°
C) 270°
D) 360°
15. An exterior angle of a triangle is 108° and its interior opposite angles are in the ratio
4: 5 the angles of triangle are
A) 48°, 60°, 72° B) 50°, 60°, 70° C) 509, 560, 729
D) 42°, 60°, 76°
BHASHYAM'S
23
IMPULSE OLYMPIAD PROGRAMME​

Answer 1

Step-by-step explanation:

11= Angle A=20°

12=45°

13=50°

14=360°

15=48°,60°,72°