ABCD is a parallelogram with ∠ABC=90∘, then number of right angles in the parallelogram excluding ∠ABC is/are ____?
cannot be found
If a quadrilateral is cyclic, how many vertices of it should lie on the circle?
ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠DBC=70∘, ∠BAC=30∘ and AB = BC, find ∠ECD.
ABCD is a cyclic quadrilateral whose side AB is a diameter of the circle. If ∠ADC=130∘, find ∠BAC.
In the given figure A, B, C, and D, E, F are two sets of collinear points, Then AD ∥ CF.
In the given figure, RS is the diameter of the circle. NM is parallel to RS and ∠MRS=29o. Calculate ∠RNM
Select the statements that are true.
Match the following;
Column−IColumn−II(A) In the given figure, (p) 60∘ ABCD is a cyclic Quadrilateral. O is the centre of the circle. If ∠BOD=160∘ find the Measure of ∠BPD.
(B) In given figure, ABCD is a cyclic(q) 65∘ quadrilateral whose side AB is a diameter of the circle through A, B, C, D. If ∠ADC=130∘, find ∠BAC.
(C) In the given figure BD = DC and(r) 40∘ ∠CBD=30∘ Find m(∠BAC)
(D) In the given figure, O is the centre of the(s) 100∘ arc ABC subtends an angle of130∘ at the centre. If AB is extended to Pm find ∠PBC.
Choose the correct option:
A-s; B-r; C-p; D-q
A-s; B-p; C-q; D-r
A-p; B-q; C-r; D-s
A-s; B-p; C-r; D-q
In the figure, given below, AD = BC,
∠ BAC=30∘ and
∠CBD=70∘. Find ∠ BCD
In the given figure, RS is the diameter of the circle. NM is parallel to RS and ∠MRS=29o. Calculate ∠NRM