Give three examples of shapes with no line of symmetry.

What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about.

(a) a vertical mirror

(b) a horizontal mirror

(c) both horizontal and vertical mirrors

Why are there no NCERT solutions of try these ? Because, in chapter congruence of triangles there is mainly try these and only 2 exercises .

--= ++= -+= +-=

Express the following numbers using exponential notation:

(i) 512 (ii) 343

(iii) 729 (iv) 3125

Give three examples of shapes with no line of symmetry.

PLEASE ANSWER FAST...The Experts,MeritNation

In the Try these of Maths Book 7 (NCERT) in Page number 130 there is a question:

- Find the unknown length x in the following figures (Fig 6.29):

(vi)When I solved this, I got 2 different answers: Please see the statement as my doubt written at the bottom...

Solution 1)

Solution 2)

But, I my doubt is that whether the following question is correct? If yes which is the right and accurate answer. I want only the experts to clarify my fol'lowing doubt... Waiting for Experts response. Please do it as soon as possible...Thanking You!

Yours Faithfully,

Santanu Sahoo

What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about.

(a) a vertical mirror

(b) a horizontal mirror

(c) both horizontal and vertical mirrors

Why are there no NCERT solutions of try these ? Because, in chapter congruence of triangles there is mainly try these and only 2 exercises .

--= ++= -+= +-=

Express the following numbers using exponential notation:

(i) 512 (ii) 343

(iii) 729 (iv) 3125