Question

The Adjacent angles of rhombus are 3x-40°, and 2x+20°, the measure of smaller of two angle is
(a) 80° (b) 100° (c) 40° (d) 60°​

Answer 1

Answer:

sum of adjacent angles of a rhombus is 180

∘

∴3x−40

∘

+2x+20

∘

=180

∘

Or, x=40

∘

So angles are 3x−40

∘

=80

∘

and 2x+20

∘

=100

∘