Question

13. In the given figure, RISK and CLUE are parallelograms. Find the value of x.


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Answer 1

Answer:

In parallelogram RISK,

∠RKS+∠ISK=180

∘

120

∘

+∠ISK=180

∘

∠ISK=60

∘

Adjacent angles are supplementary

Also, opposite angles are equal

In parallelogram CLUE, ∠ULC=∠CEU=70

∘

Now,

x+∠ISK+∠CEU=180

o

x+60

∘

+70

∘

=180

∘

x=50

∘