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3 years ago

9

14. ABCD is a parallelogram. Find the values of x and y.

1 answer:

AveGali [126]3 years ago

6 0

X=9, y=18
First, solve for y by setting y+14 equal to 3y-22 because since it is a parallelogram, the diagonals are congruent. You should get 18 for y one you solve the equation.
Then, plug 18 into 2y+2 and set that equal to 4x+2 for the same reason as the part, then once you solve for x, you should get 9.

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H=9ft
B=6ft

Using Pythagorean thereon

$\\ \Large\sf\longmapsto P^2=H^2-B^2$

$\\ \Large\sf\longmapsto P^2=9^2-6^2$

$\\ \Large\sf\longmapsto P^2=81-36$

$\\ \Large\sf\longmapsto P^2=45$

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3 years ago

Find area and perimeter of shaded regions below

aleksandrvk [35]

Answer:

Step-by-step explanation:

ABCD is a square.

side = 24 cm

Area of square = side * side = 24 * 24 = 576 cm²

Semicircle:

d = 24 cm

r = 24/2 = 12 cm

Area of semi circle =πr²

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Area of shaded region = area of square - area of semicircle + area of semicircle

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Perimeter:

Circumference of semicircle = 2πr

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= 75.36

Perimeter = 2* circumference of semicircle + 24 + 24

= 2 * 75.36 + 24 + 24

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