Question

The perimeter of a rectangle is
28cm. Find the area of the
rectangle if the breadth is 4cm.​

Answer 1

Answer:

x+8=24

x=24-8=16

x= length of two side of the rectangle

Step-by-step explanation:

length =16÷2=8

area=l×b= 8×4=32cm2

Answer 2

ɢɪᴠᴇɴ:

• Perimeter of rectangle = 28 cm
• Breadth = 4 cm
• Length = x

ᴛᴏ ꜰɪɴᴅ:

• Area of the rectangle

ꜱᴏʟᴜᴛɪᴏɴ:

➙Perimeter of rectange = 2 (L+B)

ATQ,

➠ 28 cm = 2 (L+B)

➠ 28 cm = 2 (4 + x)

➠ (4 + x) = $\frac{28}{2}$

➠ (4 + x) = 14

➠ x = 14 - 4

➠ x = 10 cm

Hence, Length = 10 cm

ɴᴏᴡ:

Area of Rectangle = L × B

➠ Area = (10 × 4)

➠ 40 cm²

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