Question

1. Find a Pythagorean triplet in which one member is 12.

a)12,35,37
b)15,35,37
c)13,35,37
d)14,35,37



2. Which of the following numbers is a perfect cube?

(a) 125

(b) 36

(c) 75

(d) 100.



3. Which of the following is false?

(a) Cube of any odd number is odd

(b) A perfect cube does not end with two zeroes

(c) The cube of a single digit number may be a single digit number

(d) There is no perfect cube which ends
with 8.



3. The volume of a cube is 64 cm³. The edge of the cube is

(a) 4 cm

(b) 8 cm

(c) 16 cm

(d) 6 cm.​

Answer 1

Answer:

Pythagoras triplets are 2n, n^2-1 and n^2+1

2n=12,

n=12/2= 6

n^2-1=35

n^2+1=37

triplets are 12, 35 and37