3 years ago

HELP ASAP!!!!! PLEASE

Mathematics

1 answer:

Eva8 [605]3 years ago

8 0

Find the area of the square, which has a side length of 2.

Area of square = 2 x 2 = 4

Now multiply the area by the length b

Volume = 4 x 5 = 20 square units total.

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A regular pentagon has an apothem of 3.2 and an area of 37.2 m. What

soldier1979 [14.2K]

The area of any regular polygon can be expressed as:

(ns^2)/(4tan(180/n)) where n is number of sides and s is a side length (no apothem needed :D)

37.2=5s^2/(4tan36)

s^2=(148.8tan36)/5

s≈4.65m

8 0

3 years ago

What is the area of the figure below?

Grace [21]

Answer:

option B

Step-by-step explanation:

The figure is combination of parallelogram and semi- circle. So,

area = area of parallelogram + area of semi-circle

$Area \ of \ parallelogram = base \times height = 7 \times 6 = 42 cm^2\\\\Area \ of \ semi-circle = \frac{1}{2} \pi r^2 = \frac{1}{2} \times 3.14 \times 3.5^2 = 19.2cm^2\\\\Therefore \ Area = 42 + 19.23 = 61.2cm^2$