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tankabanditka [31]
3 years ago
12

GH bisects FGI. Find the measure of HGI •15° •21° •10° •8°

Mathematics
2 answers:
hjlf3 years ago
4 0

Answer:

Option B is correct.

the measure of angle HGI is 21°

Step-by-step explanation:

By Angle bisector definition:

A line that bisects the angle into equal angle

From the given figure, we have;

\angle FGH = (2x+1)^{\circ} and  \angle HGI = (3x-9)^{\circ}

it is given that: GH bisects ∠FGI.

then by definition:

\angle FGH = \angle HGI

Substitute the given values we have;

2x+1 = 3x -9

Add 9 to both sides we get;

2x+10= 3x

Subtract 2x from both sides we get;

10= x

or

x= 10

then;

\angle HGI = 3x-9 = 3(10)-9 = 30-9 = 21^{\circ}

Therefore, the measure of angle HGI is 21°

tester [92]3 years ago
3 0

Answer:

m<HGI=21°

Step-by-step explanation:

we know that

If GH bisects m<FGI then

m<FGH=m<HGI

substitute the values

(2x+1)°=(3x-9)°

solve for x

3x-2x=1+9

x=10°

The measure of angle HGI is equal to

(3x-9)° ------> substitute the value of x

3*10-9=21°

m<HGI=21°

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