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3 years ago

I only need help with 12 and please tell me how you figured it out

Mathematics

2 answers:

Naddika [18.5K]3 years ago

7 0

There are 24 kids in the classroom
3/4 of the class did their homework
1/4 did not do their homework
18/3=6
6*4=24

Elis [28]3 years ago

5 0

There are 24 kids in the class because 24 multiplied by 3/4=18

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3 years ago

Find the area of the following polygon:

Masja [62]

Given:

ABCD is a quadrilateral

AC = 12, DE = 4 and FB = 5

To find:

The area of the polygon.

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AC bisects the quadrilateral into two triangles.

Area of triangle:

$$A=\frac{1}{2}\times\text{base}\times\text{height}$

<u>Area of triangle DAC:</u>

$$A=\frac{1}{2}\times AC \times DE$

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Area of triangle DAC = 24 square units.

<u>Area of triangle BAC:</u>

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Area of triangle BAC = 30 square units.

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3 years ago