Question

3. In this picture, equilateral quadrilateral is given. Find the measurement of angle Y.
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Answer 1

Step-by-step explanation:

here is a traingle which which are three angle

one is 30 and second is y

one is 90°

the three angles = 180

90 + 30 + y = 180

120 + y = 180

y = 180 - 120

y => 60

Answer 2

Given :   equilateral quadrilateral

and half of one angle = 60°

To Find : the measurement of angle Y.

Solution:

equilateral quadrilateral  means Rhombus

Diagonal of rhombus bisect each other perpendicularly

Hence angle at intersection = 90°

90° + 30° + y = 180°  ( sum of angles of a triangle )

=> y = 60°

the measurement of angle Y  is 60°

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