Question

5. Which of the following is a 3-dimensional figure?
a) Square b) Circle c) Rectangle
d) Cylinder
6. The value of expression (8°-39) x (8°+39 is equal to
a) o b) 1 c)2
d)3
7. Factorise: a²b-ab3
a) ab (a? +62) b) ab (a² + ab + b) c) ab (a + b) (a?- ab + b?)
8. One of the factors of a? + 4ab + 4ab is
a) a + 2b b) a c) a - 2b d) -2b​

Answer 1

Answer:

Option d) Cylinder is a three dimensional figure.

Step-by-step explanation:

A cylinder has 3 faces.

2 flat and 1 curved = 2+1=3

Answer 2

Answer:

(5)Ans: cylinder

Step-by-step explanation

cylinder is the perfect answer because rectangle and square have 6dimension but cylinder have 3dimension and circle doesn't dimension