Two angles are supplementary (sum 180°). One angle is 30° more than the other. Let the angles be a and b with a + b = 180 and a = b + 30. Use substitution to find the larger angle a (in degrees).

Question

Accepted Answer

105. Substitute a = b + 30 into a + b = 180: (b + 30) + b = 180, 2b = 150, b = 75, a = 105°.

Two angles are supplementary (sum 180°). One angle is 30° more than the other.
Let the angles be a and b with a + b = 180 and a = b + 30.
Use substitution to find the larger angle a (in degrees).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Substitution Method practice

Two angles are supplementary (sum 180°). One angle is 30° more than the other.Let the angles be a and b with a + b = 180 and a = b + 30.Use substitution to find the larger angle a (in degrees).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Substitution Method practice

Two angles are supplementary (sum 180°). One angle is 30° more than the other.
Let the angles be a and b with a + b = 180 and a = b + 30.
Use substitution to find the larger angle a (in degrees).