What will be the area of the circle shown if the area of the shaded part is 5 sq.cm?
(WITH EXPLANATION PLEASE)
Answers
Answer:
The area of the circle is 60 sq. cm. option B is the correct answer
Given :
∠OBA = 75°, Area of shaded region is 5 sq. cm
To find :
Area of the circle
Explanation:
∠OBA = ∠OAB = 75°
∴ ∠AOB = 180° - 75° - 75° = 30°
Area of shaded region = 5 sq. cm
5= 30/360*π*(radius)²
(radius)² = 60/π
Area of the circle = π*(radius)²
= 60 sq. cm
Multiplication:
Multiplying the numbers allows mathematicians to find the sum of two or more numbers. It is a fundamental mathematical operation that is utilized frequently on a daily basis. When mixing groups of similar sizes, we use multiplication. The concept of adding the same number repeatedly is represented by multiplication. The results of multiplying two or more numbers are known as their products, and the factors are the amounts that are being multiplied. Repeatedly adding the same number is made easier by multiplying the numbers.
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