Question

Please help this is due really soon (picture is below) -please give an explanation

Answer 1

135 sq units.

Explanation:

FInd the area of the whole square,18*15. Which equals 270.

This side of the huge triangles is 12 cms with its height equaling 15. So you multiply 15*12 which is 180, divided by 2 will get you the area which is 90. The second triangles area is half of the first triangle because its width is 6. So the second triangles area is 45. add 90+45 and you get 135. This also means that the white space also equal 135 meaning that both numbers added up is 270. So the answer is correct! :)

Answer 2

area of shaded region is: 270 units^2

Explanation:

Area of Triangle:

A= BH

Full Triangle:

A = BH

A = 12(15)

A = 180

Half Triangle:

A = (1/2)BH >> I put 1/2 because it is half a triangle

A = (1/2)(12(15))

A = 1/2(180)

A = 90

now add them : 180+90=270