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 statement must be true?

d is perpendicular to c.
d is perpendicular to a.
d is parallel to b.
c is parallel to a.

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

.bjbjk.b,j.l.

step-by-step explanation:

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24