登入
Mathematics for IGCSE & O level - Mensuration (Section 5 - No. 14)
The surface area of a hemisphere is 9π cm². Calculate its radius.
3 cm
1.5 cm
4.5 cm
6 cm
解释
3πr² = 9π, solving for r, we get r=3cm
评论 (0)
登录发表评论
广告
允许 javascript 正确加载此页面
