+0

# Need help figuring this out

0
217
2
+98

What is the measure of  DF?

CrazyDaizy  Jun 2, 2017

#2
+6616
+4

I think you want the measure of the arc DF

$$\angle{DEF}=\frac12\,\cdot\,\overset{ \frown}{DF} \\~\\ 72^{\circ}=\frac12\,\cdot\,\overset{\frown}{DF} \qquad \text{ Multiply both sides of the equation by 2.} \\~\\ 144^{\circ}=\overset{\frown}{DF}$$

hectictar  Jun 2, 2017
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#1
+445
+1

I'll think and then edit this.

ZZZZZZ  Jun 2, 2017
edited by ZZZZZZ  Jun 2, 2017
#2
+6616
+4

I think you want the measure of the arc DF

$$\angle{DEF}=\frac12\,\cdot\,\overset{ \frown}{DF} \\~\\ 72^{\circ}=\frac12\,\cdot\,\overset{\frown}{DF} \qquad \text{ Multiply both sides of the equation by 2.} \\~\\ 144^{\circ}=\overset{\frown}{DF}$$

hectictar  Jun 2, 2017

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