Question

PLEASE HELP!
Find the approximate area.
Picture attached.

Answer 1

Are we approximating the area of the eclipse or the large triangle? @RH

Answer 2

@genius12 the eclipse

Answer 3

Is the large triangle isosceles? @RH

Answer 4

Generally the approximate area of the so called 'swimming pool'

Answer 5

No I think it is obtuse

Answer 6

And the scale given there is actually to be used right? @RH

Answer 7

Yes

Answer 8

What is the approximate area of the swimming pool? Show your calculations. Hint: Don’t forget about the scale (just below the figure) when finding the area! (this is what its written)

Answer 9

Since we are 'approximating' the area of the eclipse, and we know that the area of an eclipse is: A = Pi * Minor Axis * Major Axis, from what it looks like, we can estimate that the minor axis is 3 metres and the major axis is 5 metres. Therefore, the approximate area is:

A = pi * 5 * 3
= 15pi (approximately)

@RH

Answer 10

It should be a circle not a eclipse! Is the calculation still right?

Answer 11

@genius12

Answer 12

Well I'm judging the axes based on the picture and the scale. But that's how you would do it. If it's a circle, then approximate the radius with the scale and find the approximate area of the circle. @RH

Answer 13

@genius12 Can you tell me how to do that? :(

Answer 14

Look at the diagram you have and look at the radius of this circle. Then look at the scale and estimate the length of this radius according to the scale given. The scale goes by units of 1, that is to say each small line is increasing by 1 unit up to 5 units. By estimating the radius through the scale given, you can use the A = Pi * (R)^2 formula to get the approximate area of the circle. Get it? @RH

Answer 15

Yes! Thank you! :)