Math, asked by andrea76, 5 hours ago

Read the instructions first and then chose the correct/best answer.

I need correct answer.

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Answers

Answered by tennetiraj86
1

Step-by-step explanation:

Solutions :-

1)Given length of sides of a triangle are 2 units and 5 units

Option (C)

10 can not be the side of the given triangle

Reason :

2+5=7 < 10

The sum of any two sides is not greater than the third side

2)Given length of sides of a triangle are 5 units and 7 units

Option (B)

7 can be side of the given triangle

Reason :

5+7 =12 > 7

7+7=14 > 5

7+5 = 12 > 7

The sum of any two sides is greater than the third side

3)Given length of sides of a triangle are 7 units and 9 units

Option (B)

8 can be side of the given triangle

Reason :

8+7 =15 > 9

9+7=16 > 8

9+8 = 17 > 7

The sum of any two sides is greater than the third side

4)Given length of sides of a triangle are 8 units and 10 units

Option (C)

11 can be side of the given triangle

Reason :

8+10 =18 > 11

11+10=21 > 8

8+11 = 19 > 10

The sum of any two sides is greater than the third side

5)option (B)

(2,3,4) represents lengths of the sides of the triangle

Reason :

2+3 =5> 4

3+4=7> 2

4+2 = 6 > 3

The sum of any two sides is greater than the third side

6) option (A)

Longer than

Reason :-

The side opposite to the larger angle is longer than the side opposite to the smaller angle

7)Given length of sides of a triangle are 4 units and 10 units

Option (D)

8 can be side of the given triangle

Reason :

4+10 =14 > 8

10+8=18 > 4

8+4 = 12 > 10

The sum of any two sides is greater than the third side

8)Given length of sides of a triangle are 2 units and 6 units

Option (D)

10 can not be the side of the given triangle

Reason :

2+6 = 8 <10

The sum of any two sides is not greater than the third side

9) option (A)

2 meter , 3 meter , 4 meter

(2,3,4) represents lengths of the sides of the triangle

Reason :

2+3 =5> 4

3+4=7> 2

4+2 = 6 > 3

The sum of any two sides is greater than the third side

10)option (B)

Across from the longest side ,the largest angle is located in a triangle.

11)option (C)

angle C

Reason :-

AB = 8 units is the shortest side ,We know that

The angle opposite to the shortest side is smaller

12)option (C)

Reason :-

AB

Reason :-

angle C = 87° is the largest angle , so opposite side to the largest angle is AB is the longer side

13)option (A)

angle B

Reason :-

TS = 12 units is the longer side ,So opposite angle to the longer side is largest angle

14)option (B)

BC

Reason:-

From the triangle the angles are 30°,63° and 87°

Smaller angle = 30°

We know that

The side opposite to the shortest angle is the smaller side

The side opposite to 30° is BC

15) option (A)

Across the shortest side

16)option (A)

Across the smallest angle of a triangle

17) option (A)

18) Option (B)

19) Option (A)

20) Option (B)

Used formulae:-

  • The sum of any lengths of the two sides of a triangle is greater than the length of the third side.

  • The side opposite to largest angle is longer and the side opposite to shortest angle is smaller in a triangle.
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