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ad-work [718]
3 years ago
10

A shape is made of 12 right triangle of equal size. Each righ triangle has a base of 4 cm and a height of 5 cm. What is the tota

l area, in square centimeters, of the shape?
Mathematics
2 answers:
slavikrds [6]3 years ago
5 0

Answer:

120 cm².

Step-by-step explanation:

ioda3 years ago
3 0

Answer: 120 cm².

Step-by-step explanation:

1. To solve this problem you must apply the formula for calculate the area of a triangle, which is:

A=\frac{b*h}{2}

Where <em>b</em> is the base and <em>h</em> is the height of the triangle.

2. Then, when you substitute the values given in the problem you obtain:

 A=\frac{(4cm)(5cm)}{2}=10cm^{2}

3. You know that the shape is made of 12 right triangle of equal size, therefore, multiply the area obtained by 12.

4. Then the area of the shape is:

A_s=12(10cm^{2})=120cm^{2}

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