-1 and nbsp-2 form linear pair- If nbsp- nbsp-1 nbsp- 40- find nbsp-2- nbsp- 40- nbsp-100- nbsp-80- nbsp-140- nbsp-

The correct option is D 140° nbsp; Given, nbsp;∠1 nbsp;= 40°. ∠1 + nbsp;∠2 = 180° (Linear Pair) 40° + nbsp;∠2 = 180°. ∠2 = 180° 40° = 140°. Hence, ...

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Byju's Answer

Standard IX

Mathematics

Dividing Line Segment into Equal Parts

∠1 and nbsp...

Question

$∠$ 1 and $∠$ 2 form linear pair. If $∠$ 1 = 40°, find $∠$ 2.

40°

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140°

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100°

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80°

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Solution

The correct option is B 140°

Given, $∠$ 1 = 40°.
$∠$ 1 + $∠$ 2 = 180° (Linear Pair)
40° + $∠$ 2 = 180°.
$∠$ 2 = 180° - 40° = 140°.

Hence, $∠$ 2 = 140°.

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Similar questions

Q. Find the mean, median and mode of the following data:

Classes:	$0 - 20$	$20 - 40$	$40 - 60$	$60 - 80$	$80 - 100$	$100 - 120$	$120 - 140$
Frequency:	$6$	$8$	$10$	$12$	$6$	$5$	$3$

∠

1 and

∠

2 form linear pair. If

∠

1 = 40°, find

∠

Q. Find the mean of the following frequency distribution.

Class interval	$0 - 20$	$20 - 40$	$40 - 60$	$60 - 80$	$80 - 100$	$100 - 120$	$120 - 140$
Frequency	$4$	$15$	$23$	$12$	$16$	$8$	$2$

The mean of the following frequency table is 50. But the frequencies $f_{1}$ and $f_{2}$ in classes $20 - 40$ and $60 - 80$ are missing. Find the missing frequencies.

Class	$0 - 20$	$20 - 40$	$40 - 60$	$60 - 80$	$80 - 100$	$T o t a l$
Frequency	$17$	$f_{1}$	$32$	$f_{2}$	$19$	$100$

Q. If the mean of the following distribution be

50

, then find the values of

f_{1}

and

f_{2}

Class	0-20	20-40	40-60	60-80	80-100	Total
Frequency	17	28	$f_{1}$	24	$f_{2}$	120

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∠1 and ∠2 form linear pair. If ∠1 = 40°, find ∠2.

The correct option is B 140° Given, ∠1 = 40°. ∠1 + ∠2 = 180° (Linear Pair) 40° + ∠2 = 180°. ∠2 = 180° - 40° = 140°. Hence, ∠2 = 140°.

$∠$ 1 and $∠$ 2 form linear pair. If $∠$ 1 = 40°, find $∠$ 2.

The correct option is B 140°

Given, $∠$ 1 = 40°.
$∠$ 1 + $∠$ 2 = 180° (Linear Pair)
40° + $∠$ 2 = 180°.
$∠$ 2 = 180° - 40° = 140°.

Hence, $∠$ 2 = 140°.