Question

Two angles of a triangle are complementary angle .The third angle is:
a) 90°
b) 45°
C) 60°
d) None
I want full explanation​

Answer 1

Answer:

option D ie:- None....

It is so because the sum of the two complementary angles is 90. And moreover, there are only two complementary angles....

For more details, pls click on the above figure ....

If x+y =90 ......,

there will be no third angle....

as in complementary angles the sum of only two angles is 90 degree....

Hope it helps you mate....

Answer 2

Answer:

option (a) 90°

Step-by-step explanation:

Two angles of a triangle are complementary (given). Let the angles be x°, y° and z° respectively.

Two angles of a triangle are complementary (given). Let the angles be x°, y° and z° respectively.Then, x° + y° = 90° (Given)

Two angles of a triangle are complementary (given). Let the angles be x°, y° and z° respectively.Then, x° + y° = 90° (Given)Now, x° + y° + z° = 180° (for a triangle)

Two angles of a triangle are complementary (given). Let the angles be x°, y° and z° respectively.Then, x° + y° = 90° (Given)Now, x° + y° + z° = 180° (for a triangle)=> 90° + z° = 180°

Two angles of a triangle are complementary (given). Let the angles be x°, y° and z° respectively.Then, x° + y° = 90° (Given)Now, x° + y° + z° = 180° (for a triangle)=> 90° + z° = 180°=> z° = 180° - 90° = 90°, which is option (a)