1. Supplementary angles : Two angles are supplementary if their sum is 180°.
For angle 1 and ∠COF to be supplementary,
∠1 + ∠COF =180°
must be satisfied.
We see in the figure that angle 1 and COF form a straight line.
The angle of a straight line is 180°.
∴ 1 is a supplement of ∠COF.
Answer : YES
2. Given : ∠COF =150° ;
AD is perpendicular to BF.
Here, ∠BOC + ∠COF = 180° , since they form a straight line.
∠BOC = 180° - ∠COF = 180° - 150° =30°
∴ ∠BOC = 30°
Answer : D. 30°
Countries were separated by continental drift
Answer:
a plate is subducted under when a oceanic plate merges or moves to a continental plate causing subduction.
Answer:
We can create a logical way to transfer coordinates from the sphere onto a flat map. Such ways of transferring coordinates are known as projections, after the original method of transferring by literally projecting a light through a globe onto a surface. But no projection can accomplish its task without some distortion.
Explanation:
