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The area of the combined shape on page 53 of the first volume of mathematics in the fifth grade of primary school (for example) Question 2:?
From the picture, 8.8 should be the length of the longest vertical line in the middle, otherwise it cannot be calculated.

The total area can be the area of the left trapezoid plus the area of the right triangle:

(5.4+8.8)×4.2÷2+3.5×8.8÷2=45.22 (square meter), which section is 2,8.8, 1, and S ladder: (5.4+8.8) × 4.2 ÷ 2 =

S 3: 8.8×3.5÷2= 15.4 (m2)

Group S: 29.82+ 15.4=45.22 (m2), 1, (5.4+8.8) × 4.2 ÷ 2+3.5 × 8.8 ÷ 2 = 45.22 (m2), 0, (.

2. Find the area below. (Unit: meter)

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