Mathematics
Assertion (A): In ΔABC, if ∠ABC = ∠DAC, AB = 8 cm, AC = 4 cm, AD = 5 cm, then BC = 3.5 cm.
Reason (R): SAS and ASS both are valid criteria for similarity of two triangles.
A is true, R is false
A is false, R is true
Both A and R are true
Both A and R are false
Related Questions
Assertion (A): In the figure, if ∠EDB = ∠ACB, BE = 6 cm, EC = 4 cm and BD = 5 cm, then the length of AB is 12 cm.
Reason (R): If two triangles have two pairs of corresponding angles equal, then the triangles are similar.
A is true, R is false.
A is false, R is true.
Both A and R are true.
Both A and R are false.
Assertion (A): In the figure, if DE ∥ BC, then the value of x is 6 units.
Reason (R): Two similar triangles are always congruent.
A is true, R is false.
A is false, R is true.
Both A and R are true.
Both A and R are false.
Assertion (A): In the figure, ∠ABC = ∠BDC = 90°.
If AD = 4 cm, BD = 6 cm, then area of ΔABC is 40 cm2.Reason (R): Areas of two similar triangles are proportional to the squares of their corresponding sides.
A is true, R is false
A is false, R is true
Both A and R are true
Both A and R are false
