Question

PLEASE ANSWER FOR BRAINLIEST!!

Answer 1

Answer:

mFG = 67r ( Where r is the radius of the circle)

∠ECF = 67°

Step-by-step explanation:

i) m FG

Join CG

∠GCF=67°

(As FG=ED and equal chords subtend equal angle at center)

Now The length of the minor arc is given by the formula

m arc FG =

$\frac {C}{2 \pi} \times 2 \pi r$

∠C=67

m arc FG = $\frac {67}{2 \pi} \times 2 \pi r$

m arc FG = 67r

Where r is the radius of the circle.

2. ∠ECF = 67°

It is because of the rule which says that equal chords subtend equal angle at center

DE = EF

Hence ∠DCE = ∠ECF