A - 20° = 90° - A ∴ 2A = 110° ∴ A = 55°
45 degree angle
First draw a 90 degree angle .Than draw a 20 degree angle from that 90 degree angle . Than the rest of the angle will be 90-20=70 .Now bisect the 70 degree angle we will get 70/2=35. Now add the rest of the angle means 35+20 =55 GOT 55 DEGREE ANGLE
staircase is made in an angle of 20 to 30 degree and it shouldn't be more then 30 degree.
A pair of supplementary angles add up to 180 degrees. Therefore, the supplement to a 20 degree angle is equal to 180 - 20 = 160 degrees.
A pair of complementary angles add up to 90 degrees. Therefore, the complement of a 70 degree angle is 90 - 70 = 20 degrees.
The supplement of A is 180 - A The complement of A is 90 - A So, 180 - A = 2*(90 - A) + 20 or 180 - A = 180 - 2A + 20 So A = 20 degrees
A - 20° = 90° - A ∴ 2A = 110° ∴ A = 55°
The angle is 20 degrees
45 degree angle
First draw a 90 degree angle .Than draw a 20 degree angle from that 90 degree angle . Than the rest of the angle will be 90-20=70 .Now bisect the 70 degree angle we will get 70/2=35. Now add the rest of the angle means 35+20 =55 GOT 55 DEGREE ANGLE
90 - 20 = 70 degrees.
staircase is made in an angle of 20 to 30 degree and it shouldn't be more then 30 degree.
360 - 20 = 340
like this
The answer depends on knowing what the plane mirror hhas a 20-degree angle relative to!
A pair of supplementary angles add up to 180 degrees. Therefore, the supplement to a 20 degree angle is equal to 180 - 20 = 160 degrees.