Advertisements
Advertisements
Question
In the adjoining figure, if b° = a° + c°, find b.
Advertisements
Solution
a° + b° + c° = 180° ............(straight angle)
But b° = a° + c° .........(given)
∴ a° + c° + b° = 180°
⇒ b° + b° = 180°
⇒ 2b° = 180°
⇒ b° =`(180°)/2` = 90°
Hence b° = 90°
APPEARS IN
RELATED QUESTIONS
If two straight lines intersect each other, prove that the ray opposite to the bisector of one of the angles thus formed bisects the vertically opposite angle.
Write the complement of an angle of measure x°.
An angle is equal to five times its complement. Determine its measure.
Two complementary angles are such that two times the measure of one is equal to three times the measure of the other. The measure of the smaller angle is
State, true or false:
A line segment 4 cm long can have only 2000 points in it.
State, true or false:
Is 45° the supplement of 45°?
out of \[\overleftrightarrow{AB},\overrightarrow{AB},\overleftarrow{AB}\] and `overline(AB)` which one has a fixed length?
In the following figure, ∠AOB and ∠AOC are adjacent angles? Give the reason for your answer.
Write the complement of `1/3` of 180°
Write the supplement of (110 – x – 2y)°
