The Total solution for NCERT class 6-12
If ABCD is a rhombus with ∠ABC = 56o,find the measure of ∠ACD.
In a rhombus ABCD,
o
So,
or
We know, consecutiveangles of a rhombus are supplementary.
∠BCD + ∠ABC = 180 o
∠BCD = 180 o – 56 o = 124 o
Equation (1) ⇒ o = 62 o