According to Euclid’s postulate, which angles are equal to one another ? 

1. The postulate Ananya was willing to test was, ‘all cells arise from pre-existing cells’. According to this postulate, to form new cells, pre-existing cells are must; therefore, cellular organelles...

Correct option is  D) adjacent

A) Both A and B are true statements

Correct option is (C) similar If three angles of a triangle are equal to three angles of another triangle then they are similar triangle need not be congruent if not showing some...

Correct option is  A) A.A.A.

Correct option is (B) 80° Let \(120^\circ,x^\circ,x^\circ,x^\circ\) are angles of quadrilateral. \(\therefore\) \(120^\circ+x^\circ+x^\circ+x^\circ=360^\circ\) \(\Rightarrow\) \(3x^\circ=360^\circ-120^\circ=240^\circ\) \(\Rightarrow\) \(x^\circ=\frac{240^\circ}3=80^\circ\) The measure of each equal angle is \(80^\circ.\)

Chemical reaction given by Van Niel:  6CO2 + 12H2S → C6H12O6 + 6H2O + 12S ↓  Van Niel’s postulate:  Green plants use water in place of H2S and O2 is evolved in place of...

Correct option is (D) 72°, 108° Let angles are 2x and 3x. Then 2x+3x = \(108^\circ\)   \((\because\) Sum of opposite angles in a cyclic quadrilateral is \(180^\circ)\) \(\Rightarrow\) 5x = \(108^\circ\) \(\Rightarrow\) x = \(\frac{180^\circ}5=36^\circ\) \(\therefore\) \(2x=72^\circ\;and\;3x=108^\circ\) Hence, required angles are \(72^\circ\;and\;108^\circ.\)

Let the other angle = x° According to given, 89° + 113° + x° + x° = 360° 2x° = 360° – 202° 2x° = 158° x° = (158/2)°=79° ∴other two angles = 79° each