Question

Help me with this plz guys ur my only hope

Answer 1

Pi = 3.14

Diameter (d) = 86 cm

•°• Radius (r) = 86 ÷ 2 = 43 cm (radius is 1/2 of diameter)

Area of the circle = ?

Formula,

`\pi( {r})^(2)`

Substitute the value of 'r' & pi in the formula.

`\pi(43) {}^(2) \\ = 3.14 * 43 {}^(2) \\ = 3.14 * 1849 \\ = 5805.86 \: \: cm {}^(2)`

⎆ The area of the circle is about 5805.86 cm² (approx.)