某三棱锥的三视图如图所示，则该三棱锥的表面积是

题干

某三棱锥的三视图如图所示，则该三棱锥的表面积是（）

A： $2 + \sqrt{5}$

B： $2 + 2 \sqrt{5}$

C： $4 + \sqrt{5}$

D：5

上一题下一题 0.0难度选择题更新时间:2018-04-30 10:44:17

B

Name

Personal Information

Fei Junlong

Born in 1965 in Jiangsu, China

An astronaut (宇航员)

Traveled in Shenzhou VI in outer space with Nie Haisheng from October 12th to October 17th, 2005

Yao Ming

Born in 1980 in Shanghai, China

The son of two great basketball players

Joined the Houston Rockets （休斯敦火箭队）in June, 2002

Jay Chou

Born in 1979 in Taiwan, China

A popular singer

Favorite music: Hip-Hop

Alfred Nobel

(1833-1896)

Born in Sweden

A scientist

Known for the Nobel Prizes

Helen Keller

(1880-1968)

Not able to see or hear

Worked hard and became one of the famous writers in America

Wrote a lot, such as The Story of My Life

根据材料内容，选择最佳答案。