We read your photo as:

Calculate the total area of the composite shapes. Shape 1: Square (side 20cm) and Triangle (base 20cm, height 20cm). Shape 2: Square (side 18cm) and Triangle (base 18cm, height 18cm).

Mathematics

ScanSolve AI Answer

Step-by-step solution

16 steps

Here are the total areas for each shape:

1)

  1. Identify the components of the shape.

    The shape consists of a square and a right-angled triangle.
    The square has sides of 20 cm.
    The triangle has a base of 20 cm and a height of 20 cm.

  2. Calculate the area of the square.

    Areasquare=side×side=20 cm×20 cm=400 cm2\text{Area}_{\text{square}} = \text{side} \times \text{side} = 20 \text{ cm} \times 20 \text{ cm} = 400 \text{ cm}^2
  3. Calculate the area of the triangle.

    Areatriangle=12×base×height=12×20 cm×20 cm=200 cm2\text{Area}_{\text{triangle}} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 20 \text{ cm} \times 20 \text{ cm} = 200 \text{ cm}^2
  4. Calculate the total area.

    Total Area1=Areasquare+Areatriangle=400 cm2+200 cm2=600 cm2\text{Total Area}_1 = \text{Area}_{\text{square}} + \text{Area}_{\text{triangle}} = 400 \text{ cm}^2 + 200 \text{ cm}^2 = \boxed{\text{600 cm}^2}

    2)

  5. Identify the components of the shape.

    The shape consists of a square and a right-angled triangle.
    The square has sides of 18 cm.
    The triangle has a base of 18 cm and a height of 18 cm.

  6. Calculate the area of the square.

    Areasquare=side×side=18 cm×18 cm=324 cm2\text{Area}_{\text{square}} = \text{side} \times \text{side} = 18 \text{ cm} \times 18 \text{ cm} = 324 \text{ cm}^2
  7. Calculate the area of the triangle.

    Areatriangle=12×base×height=12×18 cm×18 cm=162 cm2\text{Area}_{\text{triangle}} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 18 \text{ cm} \times 18 \text{ cm} = 162 \text{ cm}^2
  8. Calculate the total area.

    Total Area2=Areasquare+Areatriangle=324 cm2+162 cm2=486 cm2\text{Total Area}_2 = \text{Area}_{\text{square}} + \text{Area}_{\text{triangle}} = 324 \text{ cm}^2 + 162 \text{ cm}^2 = \boxed{\text{486 cm}^2}

    3)

  9. Identify the components of the shape.

    The shape consists of a square and a right-angled triangle.
    The square has sides of 24 cm.
    The triangle has a base of 24 cm and a height of 24 cm.

  10. Calculate the area of the square.

    Areasquare=side×side=24 cm×24 cm=576 cm2\text{Area}_{\text{square}} = \text{side} \times \text{side} = 24 \text{ cm} \times 24 \text{ cm} = 576 \text{ cm}^2
  11. Calculate the area of the triangle.

    Areatriangle=12×base×height=12×24 cm×24 cm=288 cm2\text{Area}_{\text{triangle}} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 24 \text{ cm} \times 24 \text{ cm} = 288 \text{ cm}^2
  12. Calculate the total area.

    Total Area3=Areasquare+Areatriangle=576 cm2+288 cm2=864 cm2\text{Total Area}_3 = \text{Area}_{\text{square}} + \text{Area}_{\text{triangle}} = 576 \text{ cm}^2 + 288 \text{ cm}^2 = \boxed{\text{864 cm}^2}

    4)

  13. Identify the components of the shape.

    The shape consists of a square and a right-angled triangle.
    The square has sides of 32 cm.
    The triangle has a base of 32 cm and a height of 32 cm.

  14. Calculate the area of the square.

    Areasquare=side×side=32 cm×32 cm=1024 cm2\text{Area}_{\text{square}} = \text{side} \times \text{side} = 32 \text{ cm} \times 32 \text{ cm} = 1024 \text{ cm}^2
  15. Calculate the area of the triangle.

    Areatriangle=12×base×height=12×32 cm×32 cm=512 cm2\text{Area}_{\text{triangle}} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 32 \text{ cm} \times 32 \text{ cm} = 512 \text{ cm}^2
  16. Calculate the total area.

    Total Area4=Areasquare+Areatriangle=1024 cm2+512 cm2=1536 cm2\text{Total Area}_4 = \text{Area}_{\text{square}} + \text{Area}_{\text{triangle}} = 1024 \text{ cm}^2 + 512 \text{ cm}^2 = \boxed{\text{1536 cm}^2}
Was this helpful?

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question
Handwritten step-by-step solution preview

Handwritten Step-by-Step Solution

Get this as a handwritten image on WhatsApp — like a tutor wrote it for you.

Try on WhatsApp