Mathematics, 16.06.2021 02:40, chrischris1

Math question please show work due today last day to submit Assignments or I fail please help

Answers: 3

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answered: 410zae

$\text{a. }41.4\:\mathrm{m^2},\\\text{b. }1590.4\:\mathrm{cm^2},\\\text{c. }0.1\:\mathrm{m^2}$

Step-by-step explanation:

Part A:

The figure implies a rectangle. The area of a rectangle with base and height is given by A=bh .

What we're given:

of 9.2

of 4.5

Therefore, the area of the rectangle is $9.2\cdot 4.5=\boxed{41.4\:\mathrm{m^2}}$

Part B:

The figure shows a circle. The area of a circle with radius is given by $A=r^2\pi$ . In the figure, the diameter is marked as 45 cm. To find the radius, we must divided this by 2, because by definition, the radius if half the diameter. Therefore, $r=\frac{45}{2}=22.5\:\mathrm{cm}$ and the area of this circle, rounded to the nearest tenth, is $22.5^2\pi=1590.43128088\approx \boxed{1590.4\:\mathrm{cm^2}}$

Part C:

The figure shows a triangle (polygon with three sides). The area of a triangle with base and height is given by $A=\frac{1}{2}bh$ .

What we're given:

of 0.4

of 0.5

Substituting given values, we get:

$A=\frac{1}{2}\cdot 0.4\cdot 0.5=\boxed{0.1\:\mathrm{m^2}}$

answered: Guest

Ithink ghe answer to this question is b just trying to others
Find the perimeter of the shape below a- 7.4 units b- 8.9 units c- 11.2 units d- 13.6 units

answered: Guest

answer: e 9, 5.75

step-by-step explanation:

step 1

find the variation ab in the x coordinate

delta x=(x2-x1)=10-> 8 units

find the variation ab in the y coordinate

delta y=(y2-y1)=6-> 2 units

step 2

find the coordinates point c

x coordinate

cx=ax+delta x*2/> cx=2+8*(2/> cx=3

y coordinate

cy=ay+delta y*2/> cy=4+2*(2/> cy=4.25

the coordinates of point c are (3,4.25)

step 3

find the coordinates point d

x coordinate

dx=ax+delta x*4/> dx=2+8*(4/> dx=4

y coordinate

dy=ay+delta y*4/> dy=4+2*(4/> dy=4.5

the coordinates of point d are (4, 4.5)

step 4

find the coordinates point e

x coordinate

ex=ax+delta x*4/> ex=2+8*(6/> ex=5

y coordinate

ey=ay+delta y*4/> ey=4+2*(6/> ey=4.75

the coordinates of point e are (5, 4.75)

step 5

find the coordinates point f

x coordinate

fx=ax+delta x*4/> fx=2+8*(8/> fx=6

y coordinate

fy=ay+delta y*4/> fy=4+2*(8/> fy=5

the coordinates of point f are (6,5)

step 6

find the coordinates point g

x coordinate

gx=ax+delta x*4/> gx=2+8*(10/> gx=7

y coordinate

gy=ay+delta y*4/> gy=4+2*(10/> gy=5.25

the coordinates of point g are (7,5.25)

step 7

find the coordinates point h

x coordinate

hx=ax+delta x*4/> hx=2+8*(12/> hx=8

y coordinate

hy=ay+delta y*4/> hy=4+2*(12/> hy=5.5

the coordinates of point h are (8,5.5)

step 8

find the coordinates point i

x coordinate

ix=ax+delta x*4/> ix=2+8*(14/> ix=9

y coordinate

iy=ay+delta y*4/> iy=4+2*(14/> iy=5.75

the coordinates of point i are (9,5.75)

- r3ktforgood ☕

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Math question please show work due today last day to submit Assignments or I fail please help
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