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3 years ago

Find the area of this shape please!!

Mathematics

1 answer:

USPshnik [31]3 years ago

4 0

Answer:

I got you. The answer is 42

Step-by-step explanation:

First, you find the area of the big rectangle as if the missing piece wasn't there. So do 5 x 10 which is 50 cm. Then you calculate the area of the second rectangle (aka the missing piece). The dimensions of the missing piece is 2 x 4. 2 x 4 = 8, so the missing piece has an area of 8 cm. Finally, you subtract the area of the missing piece from the area of the shape.

50 - 8 = 42

The area of the shape is 42 cm.

Hope this helps

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2 years ago

What algebraic expression represents GK?

dsp73

Answer:

Part a) GK=(7x+1)

Part b) GH=5 units and JK=8 units

Step-by-step explanation:

Part a) what algebraic expression represents GK?

we know that

GK=GH+HJ+JK

step 1

Find GH

we have

GH=GJ-HJ

substitute the given values

GH=(2x+3)-x=x+3

step 2

Find JK

JK=HK-HJ

substitute the given values

JK=(6x-2)-x=5x-2

step 3

Find GK

GK=GH+HJ+JK

we have

GH=x+3

HJ=x

JK=5x-2

substitute

GK=(x+3)+x+(5x-2)

GK=(7x+1)

Part b) If GK=15, what are GH and JK?

we know that

GK=(7x+1)

For GK=15

substitute the value of GK and solve for x

15=(7x+1)

7x=15-1

7x=14

x=2

Find the value of GH

GH=x+3

substitute the value of x

GH=2+3=5 units

Find the value of JK

JK=5x-2

substitute the value of x

JK=5(2)-2=8 units

7 0

3 years ago