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Find the lateral area of this cone.
Leave your answer in terms of a.
3 cm
+ 4cm
LA = [ ? ]7 cm2
=
T
Hint: Lateral Area of a Cone = tre
Where e = slant height

Find the lateral area of this cone Leave your answer in terms of a 3 cm 4cm LA 7 cm2 T Hint Lateral Area of a Cone tre Where e slant height class=

Respuesta :

Step-by-step explanation:

For Slant Height (l)

(l)^2=(3)^2+(4)^2

Using Pythagoras Theroem,

(l)^2=9+16

(l)^2=25

l=5cm

For lateral surface area (pi*r*l)

pi*4*5

20pi cm^2

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