Question

Help me with this plz guys ur my only hope

Answer 1

Answer:

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.

$\pi(43) {}^{2} \\ = 3.14 \times 43 {}^{2} \\ = 3.14 \times 1849 \\ = 5805.86 \: \: cm {}^{2}$

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