Question
Point (4, 5) is the centre of a circle. A point (9, 11)
is lying on a circle. Find the area of the circle.Solution
In the figure (4,5) is the centre of the circle. ∴ Radius (r) = √((4-9)^2+(5-11)²) = √(25+36) = √61 ∴ Area of the circle = πr² = π(√61)² = 61π unit²
What will come in the place of question mark (?) in the given expression?
(11/45) of 225 + 3 X 75 = ? X (72 ÷ 6 + 4)
182 – 517 ÷ 11 - √361 = ?
√11025 x √5625 - (50)² = (?) + (73)²
What is 12% of 4% of 7% of 2 x 106 ?
37% of 810 – 32% of 460.5 = ?
19 × ? =361 ÷ 19
What will come in place of the question mark (?) in the following expression?
46 – 5² + 8² + 3² = ? × 4
[(120)2 ÷24 ×25] ÷ 250 =?
Simplify the following expressions and choose the correct option.
864 ÷ 16 + 2⁵ × 3 = ?
{(522 – 482 ) ÷ (27 + 73)} × 35 = ?% of 175