if diagonal of a rectangle is 10cm and length is 8cm ,then its perimeter is?
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Answered by
5
Perimeter= 2×(Length+Breadth)
Length = 8cm
Breadth = 10cm
Perimeter= 2× (10+8)
= 2×18cm
= 36cm.
Hope it will helpful to you.....
Answered by
6
Answer:
28 cm
Step-by-step explanation:
if the diagonal is 10 cm and length is 8 cm, then to find the breadth,
we need to use Pythagoras theorem
In the figure below,
BD²=BC²+DC²
10²=BC²+8²
100-64=BC²
BC²=36
BC=√36
=6 cm
so now,
l=8 cm and b=6 cm
perimeter=2(l+b)
=2(8+6)
2 x 14
=28 cm
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