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8_murik_8 [283]
3 years ago
7

1. Find the value of x. The diagram is not to scale. Lines F and G are parallel.

Mathematics
2 answers:
Rus_ich [418]3 years ago
7 0

(1)

we are given that

f and g are parallel lines

so, sum of both angles must be 180

5x+9x+26=180

now, we can solve for x

14x+26=180

Subtract both sides by 26

14x+26-26=180-26

14x=154

x=11...........Answer

(2)

we are given that

l and m are parallel lines

so, alternate angles must be equal

so, we get

x=28...........Answer




Svetllana [295]3 years ago
5 0

Answer:

Part 1:

we have to find the value of x

we have been given the lines f and g are parallel

Interior angles on the same side are supplementary.

Hence, the two given angles will be equal to 180

5x^{\circ}+9x^{\circ}+26^{\circ}=180^{\circ}

14x^{\circ}=180^{\circ}-26^{\circ}

14x^{\circ}=154^{\circ}

x=11^{\circ}

Therefore, Option B is correct.

Part 2:

We have to find x

l and m are parallel

Two parallel lines are cut by Transverse line

And angles on the opposite sides that are alternate interior angles are equal

Hence, x=28^{\circ}

Therefore, option A is correct.

Part 3:

a. m∠5=40^{\circ}

and m∠2=140^{\circ}

b. m∠5+m∠2=40^{\circ}+140^{\circ}=180^{\circ}

c.∠5 and ∠2 are supplementary because they are 180^{\circ}

d.∠5 and ∠2 are same side interior angles since, they are 180^{\circ}

e. a || b since, a is  180^{\circ}  and b is also 180^{\circ}.

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