1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard IX
Mathematics
Geometric Estimation Value of Square Root
Find the leng...
Question
Find the length of the diagonal of a square whose area is 128 cm
2
. Also, find its perimeter.
Open in App
Solution
Area of the square = 128 cm
2
Area
=
1
2
d
2
(
where
d
is
a
diagonal
of
the
square
)
⇒
128
=
1
2
d
2
⇒
d
2
=
256
⇒
d
=
16
cm
Now,
Area =
Side
2
⇒
128
=
Side
2
⇒
Side
=
11
.
31
cm
Perimeter = 4(Side)
=
4
11
.
31
=
45
.
24
cm
Thus, the perimeter of the square is 45.24 cm.
Suggest Corrections
13
Similar questions
Q.
Find the length of the diagonal of a square of area 128 cm
2
. Also find the perimeter of the square, correct to two decimal places.
Q.
Find the area and the perimeter of a square whose diagonal is
10
c
m
long.
Q.
The length of the diagonal of a square is
√
2
times its area. Then find its perimeter.
Q.
Find the area and perimeter of a square whose diagonal is 10cm long
Q.
Find the perimeter and area of square whose diagonal is
10
√
2
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Geometric Estimation Value of Square Root
MATHEMATICS
Watch in App
Explore more
Geometric Estimation Value of Square Root
Standard IX Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app