Question

1. a) calculate the areas of the three squares.

Explanation:

First Part (Top Diagram)

Step1: Identify Given Areas

The areas of the three squares are given as \( 50 \, \text{cm}^2 \), \( 40 \, \text{cm}^2 \), and \( 20 \, \text{cm}^2 \). Wait, maybe the question is about the triangle? Wait, the first part's question is "Calculate the areas of the three squares." But the areas are already labeled? Wait, maybe the second part? Wait, let's check the bottom diagram.

Bottom Diagram (6.a)

Step1: Area of Square with Side 4 cm

The area of a square is \( \text{side}^2 \). For side \( 4 \, \text{cm} \), area \( = 4^2 = 16 \, \text{cm}^2 \).

Step2: Area of Square with Side 3 cm

For side \( 3 \, \text{cm} \), area \( = 3^2 = 9 \, \text{cm}^2 \).

Step3: Area of Square with Side 2 cm

For side \( 2 \, \text{cm} \), area \( = 2^2 = 4 \, \text{cm}^2 \).

Answer:

• Square with side 4 cm: \( 16 \, \text{cm}^2 \)
• Square with side 3 cm: \( 9 \, \text{cm}^2 \)
• Square with side 2 cm: \( 4 \, \text{cm}^2 \)

(If the top diagram's question was misread, but the bottom one is 6.a. Assuming 6.a is about the bottom three squares: their areas are \( 16 \, \text{cm}^2 \), \( 9 \, \text{cm}^2 \), and \( 4 \, \text{cm}^2 \) respectively.)