Question

Can someone please help on question 4?
I will give you brainliest

Answer 1

Answer:

answer a

Step-by-step explanation:

Answer 2

Answer:

The area of the right  circular cone is:

• $A = 642$ cm²

Step-by-step explanation:

Given

• Height of right cone = h = 13 cm

• Base diameter = 17 cm

• so radis = r = 17/2 = 8.5 cm

Using the formula to determine the right circular cone

$A\:=\:\pi r\:\left(r+\sqrt{h^2+r^2}\right)$

substituting h = 13, and r = 8.5

$A\:=\:\pi \left(8.5\right)\:\left(8.5+\sqrt{\left(13\right)^2+\left(8.5\right)^2}\right)$

$A=8.5\pi \left(8.5+\sqrt{241.25}\right)$

$A = 642$ cm²

Therefore, the area of the right  circular cone is:

• $A = 642$ cm²