Question

Please fast tell me​

Answer 1

1). Option (b)

2). Option (d)

3). Option (d)

Explanation:

Question (1)

For Pythagoras triplet,

(Largest number)² = (Number 1)² + (Number 2)²

a). 5² = 5² + 2²

25 = 25 + 4

25 = 29

Not True.

b). 5² = 3² + 4²

25 = 9 + 16

25 = 25

True.

c). 10² = 1² + 5²

100 = 1 + 25

100 = 26

Not true.

d). 2² = 2²+ 2²

4 = 4 + 4

4 = 8

Not true.

Therefore, Option (b) is correct.

Question (2)

1 -
`(1)/(5)` =
`(5)/(5)-(1)/(5)`

=
`(5-1)/(5)`

=
`(4)/(5)`

Therefore, Option (d) is the answer.

Question (3)

Property of triangle → Sum of lengths of two sides of a triangle should be greater than the measure of third side.

a). 6 + 3 > 2 ⇒ 9 > 2 [True]

6 + 2 > 3 ⇒ 8 > 3 [True]

2 + 3 > 6 ⇒ 5 > 6 [False]

Triangle is not possible.

b). 2 + 8 > 3 → 10 > 3 [True]

8 + 3 > 2 → 11 > 2 [True]

2 + 3 > 8 → 5 > 8 [False]

Triangle is not possible.

c). 5.5 + 2.5 > 2.5 → 8 > 2.5 [True]

5.5 + 2.5 > 2.5 → 8 > 2.5 [True]

2.5 + 2.5 > 5.5 → 5 > 5.5 [False]

Triangle is not possible.

d). 3 + 6 > 7 → 9 > 7 [True]

3 + 7 > 6 → 10 > 6 [True]

7 + 6 > 3 → 13 > 3 [True]

These are the sides of a triangle.

Therefore, Option D is the answer.