Calculate the total surface area of a solid hemisphere with radius 6 cm. Answer ... cm^2

It won't just hand you the answer — it asks where you're stuck.How the checker works

Worked solution

1. Recall and apply the formula for total surface area of a solid hemisphere

For a solid hemisphere,
$\text{Total surface area}=2\pi r^2+\pi r^2=3\pi r^2.$

2. Substitute the radius and calculate the surface area

Given $r=6$ cm,
$\text{Total surface area}=3\pi(6)^2=108\pi.$
Using a calculator,
$108\pi=339.292\ldots\approx 339.$

Answer

$108\pi\text{ cm}^2$ or $339\text{ cm}^2$

AI analysis — may contain mistakes.

Worked this one out on paper? Snap your steps and Gigle's AI math checker will circle the step where it went wrong.