Question
ABCD is a cyclic quadrilateral and BC is a diameter of
the circle. If ∠DBC = 29°, then ∠BAD = ?Solution
According to the question ∠DBC = 29° ∠BDC = 90° [Angle in a semicircle is 90°] We know that sum of all the sides of triangles is 180° ⇒ ∠DBC + ∠BDC + ∠BCD = 180° ⇒ 29° + 90° + ∠BCD = 180° ⇒ 119° + ∠BCD = 180° ⇒ ∠BCD = (180° – 119°) ⇒ ∠BCD = 61° Now, We know that, the opposite angles in a cyclic quadrilateral is 180° So, ⇒ ∠BAD + ∠BCD = 180° ⇒ ∠BAD + 61° = 180° ⇒ ∠BAD = (180° – 61°) ⇒ ∠BAD = 119°
Who is the father of agronomy?
During seed development, the phase involving dry matter accumulation is called:
According to the law of demand, what is the relationship between price and quantity demanded
Which Indian institution is recognized as the apex body for coordinating horticultural research in India?
The process evapotranspiration involves
In Diptera (flies), what term refers to the modified hind wings used primarily for maintaining balance during flight?
Curcumin is extracted from
Ratooning is practiced in which of the following crops?
A system in which suitable trees are planted around fishponds with a prime objective of reducing evaporation and augmenting microclimate?
Which of the following element is responsible for the biosynthesis of oil in groundnut?
