60. Smita shaded a square cardboard, as shown below: 3.5 cm 3.5 cm 23 cm 9 3.5 cm 23 cm Which of these is closest to the area of the shaded region? (a) 364.52 cm (b) 439.9 cm (c) 492.4 cm?
Answers
ANSWER
(a) 364.52 cm
Step-by-step explanation:
Find the radius = 3.5+3.5
= 7.0
Length = 23 cm
Breadth= 23 cm
First find the area of rectangle = lenght × breadth
= (23×23) cm
=529 cm
Second you have to find the area of circle = πr²
= 22/7 × 7²
= 154 cm
Area of the shaded region = area of rectangle - area of circle
= (529 - 154) cm
= 375 cm
375 cm is closest to (a) 364.52 cm
I hope you have understood .
Answer:
Nikal be
Step-by-step explanation: