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2 years ago

8

Wilma used 60 centimeters of lace to make a border around a rectangular card. The width of the card is 20 centimeters. What is t

he length of the card?

1 answer:

iris [78.8K]2 years ago

4 0

60 - (20 + 20)= 20
20

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Find the area of the following polygon:

Masja [62]

Given:

ABCD is a quadrilateral

AC = 12, DE = 4 and FB = 5

To find:

The area of the polygon.

Solution:

AC bisects the quadrilateral into two triangles.

Area of triangle:

$$A=\frac{1}{2}\times\text{base}\times\text{height}$

<u>Area of triangle DAC:</u>

$$A=\frac{1}{2}\times AC \times DE$

$$A=\frac{1}{2}\times 12 \times 4$

$A=24$

Area of triangle DAC = 24 square units.

<u>Area of triangle BAC:</u>

$$A=\frac{1}{2}\times AC \times FB$

$$A=\frac{1}{2}\times 12 \times 5$

$A=30$

Area of triangle BAC = 30 square units.

Area of polygon = Area of triangle DAC + Area of triangle BAC

= 24 square units + 30 square units

= 54 square units

The area of the polygon is 54 square units.

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2 years ago

a fish tank contains 16 goldfish and 24 guppies if you randomly select 2 fish what id the probability that they are both goldfis

Leviafan [203]

Your probabilty is 2/40 or

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2 years ago

Subtract using unequal denominators: 7/8 - 1/4

ale4655 [162]

1/4 = 2/8

7/8 - 1/4 = 7/8 - 2/8 = (7-2)/8 = 5/8

Answer: 5/8

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2 years ago

3 of 1/10 of what number

vampirchik [111]

Answer:

3/10

Step-by-step explanation: you multiply 3 and 1/10

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2 years ago

Read 2 more answers

Please can you work out this?

Rama09 [41]

Answer:

$0.0692494 = 0.0692$

I hope I helped you^_^

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2 years ago