Question

A B C D is a square. perimeter is 34cm.
a)What is the sum of length and breath?
b)If breadth is 5cm then what is breadth?
c)what is the area of the rectangle?
d)what is the length of the diagonal?

Answer 1

Step-by-step explanation:

Ncert solutions

Grade 6

Mathematics

Chapters in NCERT Solutions - Mathematics, Class 6

Exercises in Mensuration

Question 16

Q16) What is the perimeter of each of the following figures? What do you infer from the answer?

(a)

(b)

(c)

(d)

Solution

Transcript

Solution:

(a) Perimeter of square = 4 x side

= 4 x 25 = 100 cm

(b) Perimeter of rectangle = 2 x (length + breadth)

= 2 x (40 + 10)

= 2 x 50 = 100 cm

(c) Perimeter of rectangle = 2 x (length + breadth)

= 2 x (30 + 20)

= 2 x 50 = 100 cm

(d)Perimeter of triangle = Sum of all sides

= 30 cm + 30 cm + 40 cm = 100 cm

Thus, all the figures have same perimeter.

Answer 2

Step-by-step explanation:

Perimeter of square = 4 * 1side os the square

34cm = 4 * 1 side of square

1 side of square = 17/2cm

Sum of length and breadth is 17/2cm + 17/2cm = 17cm

if breadth is 5 cm

Then also breadth will be 5cm only

Area of rectangle = Length x breadth

Area of rectangle = 17/2 x 17/2 = 249/4cm²

length of diagnal

By Pythagoras theorem,

H² = P² + B²

H² = 17/2*17/2 + 17/2*17/2

so after solving

H = Length of diagnol