Answer:
50
Step-by-step explanation:
all triangles equal a total of 180 degrees
so add 40+90
130 subtract
180-130 = 50
The diagram involves the construction for copying angle FDE as angle HCG.
<h3>What is an
angle?</h3>
An angles is formed by the intersection of two or more lines. Acute angles are angles less than 90 degrees, obtuse angles are greater than 90 degrees while right angles are equal to 90 degrees.
The diagram involves the construction for copying angle FDE as angle HCG.
Find out more on angle at: brainly.com/question/25770607
Find slope
parallel line have same slope