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MatroZZZ [7]
3 years ago
15

A semicircle is attached to the side of a rectangle as shown.

Mathematics
2 answers:
laiz [17]3 years ago
4 0

Answer:

58.8\ mm^2

Step-by-step explanation:

we know that

The area of the figure is equal to the area of rectangle plus the area of semicircle

step 1

Find the area of rectangle

The area of rectangle is equal to

A=bh

where

b=9\ mm\\h=3\ mm

substitute

A=(9)(3)=27\ mm^2

step 2

Find the area of semicircle

The area of semicircle is equal to

A=\frac{1}{2}\pi r^{2}

we have

r=9/2=4.5\ mm ---> the radius is half the diameter

\pi =3.14

substitute

A=\frac{1}{2}(3.14) (4.5)^{2}

A=31.8\ mm^2

step 3

Find the area of the figure

A=27+31.8=58.8\ mm^2

Diano4ka-milaya [45]3 years ago
4 0

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Becky added 273+416 and got 688.Then she checked her answer by adding 688+416.What error did Becky make?Was the sum she found fo
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De un grupo de 22 estudiantes hay 13 que practican natación y 10 practican atletismo y 2 que no practican nada . ¿Cuántos practi
Goshia [24]

Usando conjuntos de Venn, se encuentra que 7 estudiantes practican solo atletismo.

Los conjuntos son:

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Hay que:

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La cantidad que practica ambos es:

A \cap B = A + B - A \cup B

A \cap B = 13 + 10 - 20

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Solo atletismo es:

B - A \cap B = 10 - 3 = 7

7 estudiantes practican solo atletismo.

Más informaciones a cerca de conjuntos de Venn pueden ser obtenidas en brainly.com/question/24388608

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A number increased by 4 is the same as 19 minus 2 time the number
Blizzard [7]

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