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dmitriy555 [2]
3 years ago
11

PLEASE HELP ME ASAP I DONT WANT TO FLUNK MATH

Mathematics
1 answer:
scoundrel [369]3 years ago
7 0

Answer:

A:-1

Step-by-step explanation:

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Given: ABCD trapezoid<br> BC=1.2m, AD=1.8m<br> AB=1.5m, CD=1.2m<br> AB∩CD=K<br> Find: BK and CK
stepladder [879]

Answer:

The value of BK is 3m and the value of CK is 2.4m.

Step-by-step explanation:

Given information: ABCD trapezoid

, BC=1.2m, AD=1.8m

, AB=1.5m, CD=1.2m

, AB∩CD=K.

Using the given information draw a figure.

Two sides of a trapezoid are parallel.

Since AB∩CD=K, therefore AB and CD are not parallel, because parallel line never intersect.

AD\parallelBC

\angle KBC=\angle KAD              (Corresponding angles)

\angle KCB=\angle KDA             (Corresponding angles)

By AA rule of similarity

\triangle KBC\sim \triangle KAD

Corresponding sides of similar triangles are proportional.

\frac{KB}{KA}=\frac{KC}{KD}=\frac{BC}{AD}

\frac{x}{x+1.5}=\frac{y}{y+1.2}=\frac{1.2}{1.8}

\frac{x}{x+1.5}=\frac{1.2}{1.8}

\frac{x}{x+1.5}=\frac{2}{3}

3x=2x+3

x=3

The length of BK is 3 m.

\frac{y}{y+1.2}=\frac{1.2}{1.8}

\frac{y}{y+1.2}=\frac{2}{3}

3y=2y+2.4

y=2.4

The length of CK is 2.4 m.

5 0
3 years ago
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A rectangular pool in your friend' s yard is 150 ft× 400 ft.
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60,000 us the answer.
5 0
3 years ago
Which phrase represents the algebraic expression 5x - 9? the product of five times a number and nine the difference of nine time
svlad2 [7]

Answer:

the answer is D

Step-by-step explanation:

Its okay if you still get it right but trust me its right.

3 0
3 years ago
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A triangle with a 135° angle​
GuDViN [60]

Answer:

The 135 external angle means its corresponding internal angle is (180–135) 45 degrees. The other internal angle of 65 plus the 45 is 110 degrees. Since the sum of degrees in the angles in a triangle is 180, the other interior angle is (180–110), or 70 degrees.

Step-by-step explanation:

6 0
3 years ago
What is the answer ?
maks197457 [2]

Answer:

a rational number

Step-by-step explanation:

a rational number + a rational number will always be a rational number.

7 0
3 years ago
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