6. In the given figure, all the adjacent sides are at right angles. Find :
10 cm
4 cm
8 cm
12 cm
4 cm
(1) find the perimeter of the figure
(2) find the area of the figure
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Answers
Answer:
(1) perimeter of rect 1 = 2(l+b)
= 2(4+6)cm
= 2(10)cm
= 20 cm
perimeter of rect 2 = 2(l+b)
= 2(12+4)cm
= 2(16)cm
= 32 cm
perimeter of this figure = (pm of rect 1 + rect 2)
= (20+32)cm
= 52 cm
(2) area of rect 1 = l×b
= 4×6cm
= 24 cm
area of rect 2 = l×b
= 12×4cm
= 48 cm
area of the figure = (area of rect 1 + rect 2)
= ( 24 + 48 ) cm
= 72cm
Step-by-step explanation:
meaning of some words
rect = rectangle
l = length
b = breath
pm = perimeter
Step-by-step explanation:
(1) find the perimeter of the figure