Which Shape is NOT quadrilateral
1 answer:
Answer:
the pentagon (3rd one)
Step-by-step explanation:
definition of a quadrilateral literally means a shape with 4 sides
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I will say its the correct answer
We know that .
And .
Hope this helps.
Answer:
1.5625
Step-by-step explanation:
Answer:
Please, see the attached files.
Step-by-step explanation:
Please, see the attached files.
Thanks.
Triangle ABC and triangle DCE are congruent, so line DE = line AB
Use the cosine rule to find angle ACB
Angle ACB = 48.1°