Question

Find the area of the following shapes.

Answer 1

Answer:168.75 squared

Step-by-step explanation: we know that the whole of the rectangle ( including the outline) is 225 cm squared

so half of this is 225 divide by 2 and that is 112.5

but we also have a right-angled triangle that is half the half rectangle so we do 112.5 divide by 2 and that is 56.25

to finish it off we ad 56.25 with 112.5 and that is 168.75

Answer 2

Answer:

180mm²

Step-by-step explanation:

Area of rectangle = 15mm x 9mm

                             = 135mm²

EF = 15mm - 9mm = 6mm

Area of triangle = $\frac{1}{2}$ x 6mm x 15mm

                          = 45mm²

Total area = 135mm² + 45mm²

                 =180mm²