The area of the roof is computed by the equation of the area of a cone:
A = πr(r + $\sqrt{h^{2}+r^(2) }$ )
(r: radius, h: height, πr^2 is the area of the base of the cone, πr $\sqrt{h^{2}+r^(2) }$ is the lateral area of the cone). So:

A = $15\pi (15 + \sqrt{30^{2} +15^{2} } )$ ≈ 2287.44 ft^2.

As I stated earlier, the lateral area of the roof can be computed:

A $L$ = $15\pi \sqrt{30^{2} +15^{2} }$ ≈ 1580.58 ft^2.

5 0

2 years ago

Farmers mowed 60 acres of grass a day instead of 50 and managed to finish the task one day earlier than planned. What is the are

schepotkina [342]

300 acres. because <span>multiply 60 by 5.</span>

6 0

3 years ago

The opposite of twelve percent of a number

Salsk061 [2.6K]

Step -by-step explanation: the opposite of a number is the number on the other side of the numbers line eg -5 is the opposite of 5 so-12% is the opposite of 12%

Answer:-12%

5 0

3 years ago