Question

can someone please help me​

Answer 1

Answer:

189cm²

Step-by-step explanation:

its compound shape if rectangle and triangle

We will split it.

Well

Rectangle area: L × W = 15×9 = 135

Triangle: 1/2 × b×h = 1/2×9×12= 54

Rectangle area: 135cm²

Triangle: 27cm²+27cm² =54cm²

All area: 135+54 = 189cm²

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Answer 2

Answer:

Step-by-step explanation:

In the whole figure we have a rectangle, and a triangle

For rectangle

area of a rectangle is given by the product of its length and width

⇒let L = 15 cm

       W = 9 cm

⇒  A = L × W

        = 15 × 9

        = 135.0 cm²

For triangle

area of a triangle is given by the product of the base and height/2

⇒ A = (1/2) × h × b             (where b =base and h = height)

       = (h × b)/2

h = 27 - 15

  = 12 cm

b = W = 9 cm

⇒ A = (12 × 9)/2

       = 108/2 cm²

       = 54.0 cm²