Question

el : In a parallelogram ABCD, LA = 60°. Find measure of all other
angles of parallelogram.​

Answer 1

Answer:

la= 60 l= 90 90-60

Step-by-step explanation:

..........I guess this is the answer

Answer 2

In a parallelogram, opposite angles are equal.

∴∠C = 60°

Sum of all the angles of a quadrilateral= 360° = ∠A+∠B+∠C+∠D

= 60°+ ∠B+ 60°+ ∠D

= 120°+ ∠B+ ∠D

In a parallelogram, opposite angles are equal.

∴∠B=∠D

∠B= 360°- 120°÷ 2

=240°÷ 2 = 120°

∴∠B= ∠D= 120°

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