Makakuha ng mga sagot mula sa komunidad at mga eksperto sa IDNStudy.com. Hanapin ang mga solusyong kailangan mo nang mabilis at tiyak sa tulong ng aming mga bihasang miyembro.

what is the surface area of a cone wuth rdius 3cm and slant height of 7 cm?

Sagot :

Normally when asked about the surface area, the lateral surface area is the one being referred to but let me just consider both the lateral surface area and the total surfX:VV
For the lateral surface area, you'll have the formula:
A = π r l
where A is the area
         r is the radius 
         l is the slant height
A = π (3cm)(7cm)
A = 21 π cm²
A = 65.97 cm²

For the total surface area, you'll have:
A = π r l + π r²
A = π(3cm)(7cm) + π(3cm)²
A = 30 π cm²
A = 94.25 cm²