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iren [92.7K]
3 years ago
13

If a, b, c, and d are coplanar lines and a is parallel to b, b is perpendicular to c, and c is parallel to d, then which stateme

nt must be true?
d is perpendicular to c.
d is perpendicular to a.
d is parallel to b.
c is parallel to a.
Mathematics
2 answers:
miskamm [114]3 years ago
6 0

Answer: The second option is correct i.e. d is perpendicular to a

Step-by-step explanation: Given : a || b

b ⊥ c

c || d

Since b ⊥c  and c || d therefore

∴b will be  ⊥ d

and a || b

⇒ a ⊥ d

or d is perpendicular to a

Andreas93 [3]3 years ago
4 0
D must be perpendicular to a because d is parallel to c. c is perpendicular to b. b is parallel to a.
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