parameter and length of rectangle are 20 cm and 7 cm respectively find its area.
Answers
Answered by
1
Answer:
21
Step-by-step explanation:
Length= 7
Perimeter= 20
we know, perimeter= 2( L+B)
⇒2(7+B)=20
⇒7+B=20/2
⇒B=10-7=3
∴B=7
Area=L×B
⇒A=7×3=21
Hope this helps.
Answered by
1
Answer:
area is 21 cm
Step-by-step explanation:
Given perimeter of rectangle is 20cms
length (L) = 7 cms
formula of perimeter of rectangle = 2( L+W )
20= 2( 7+ W)
10 = 7+ W
W= 10-7
W = 3
area of rectangle L*W = 7*3 =21 cms
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