Question

PLEASE HELP ME!!!

Based on the formula for triangles, A = bh/2, I did that and got 24.5 but since there are 2 of the triangles I did 24.5 x 2 = 49. I know that the line in the triangle means they are congruent. But are they congruent to show that the base and height is 7 x 7 for the one that the line is crossing of does it show that itś 7x7 for both triangles?

I found the area of the square and subtracted that from the area of the triangles to get 147.

My area of the triangles is 49ft^2
My area of the pebbles is 147ft^2.
Is this correct?

Answer 1

98 feet

Explanation:

area= I x W

14x7

98 feet

Answer 2

147 ft²

Explanation:

The simple and best way would be to find the area of the square and subtract that from the area of the triangles.

`14*14=196`

If side a and b of the triangle(s) is 7, then the area is 24.5.

`A=(ab)/(2)=(7.7)/(2)=24.5`

Then you add the two triangles together (since there's two unshaded regions) and subtracted that from the whole square.

`24.5*2=49`

`196-49=147`

The area of the two triangles is 49 ft²^2.

The area of what the pebbles cover is 147 ft^2.

So yes, you are correct.