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3 years ago

A trapezoid has 63.4 kilometers base and 23.2 kilometers base, as well as 75.3 kilometers height. What is the area?

Mathematics

2 answers:

andrew11 [14]3 years ago

8 0

A=(b1+b2) x height x 1/2
a=(63.4+23.2) x 75.3) x 1/2
a= 86.6x 75.3 x 1/2
a=6,520.98 x 1/2
a=3,260.49

Finger [1]3 years ago

7 0

Make sure to multiply everything together, then check it with a calculater.
Hope this works:)

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Sever21 [200]

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Solution:

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Total area of the square = 100 cm²

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Area of the smaller triangle = $\frac{1}{2}\times \text{base}\times \text{height}$

$$=\frac{1}{2}\times 3\times 10$

Area of the smaller triangle = 15 cm²

Base of the larger triangle = 10 cm – 4 cm = 6 cm

Height of the larger triangle = 10 cm

Area of the larger triangle = $\frac{1}{2}\times \text{base}\times \text{height}$

$$=\frac{1}{2}\times 6\times 10$

Area of the larger triangle = 30 cm²

Area of the shaded portion = Area of the square – Area of the smaller

triangle – Area of the larger triangle

= 100 cm² – 15 cm² – 30 cm²

Area of the shaded portion = 55 cm²

Percentage of the area shaded = $\frac{\text{Area of the shaded portion}}{\text{Total area of the square}}\times100\%$

$$=\frac{55}{100}\times100\%$

Percentage of the area shaded = 55%

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Answer:

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Step-by-step explanation:

Given

The attached table

Solving (a): Complete the table

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