Question

a flat circular top has a diameter of 34 cm. fill in the blanks. you can use 3.14 as an approximation for π. a = π · 17² the area of the top is about square cm.

Explanation:

Step1: Find the radius

The radius $r$ of a circle is half of the diameter $d$. Given $d = 34$ cm, so $r=\frac{d}{2}=\frac{34}{2}=17$ cm.

Step2: Use the area - formula

The area formula of a circle is $A = \pi r^{2}$. Substitute $r = 17$ cm into the formula, we get $A=\pi\times17^{2}=\pi\times289$. Using $\pi\approx3.14$, then $A\approx3.14\times289 = 907.46$ $cm^{2}$.

Answer:

907.46