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Wewaii [24]
3 years ago
8

Special right triangles: what is the value of x? enter your answer in the box.

Mathematics
1 answer:
tiny-mole [99]3 years ago
7 0
I think you meant to add more to your question (posting the specific problem).
In general, one special right triangle is the <span>45°-45°-90° triangle, in which both legs are congruent and the hypotenuse = √2 * the length of the leg. if you happen to not have the length of the leg, the formula for finding the leg is:  leg = hypotenuse / √2

Another special right triangle is the </span><span>30°-60°-90° triangle. With this kind of triangle the length of the hypotenuse is twice the length of the shorter leg. The length of the longer leg is √3 times the length of the shorter leg.
hypotenuse = 2 * shorter leg
longer leg = √3 * shorter leg</span>
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Please help thank you.
marusya05 [52]
This problem can be completed in 2 ways. Both are acceptable.

Option 1:


This is an isosceles trapezoid that can be divided into a rectangle and two congruent triangles.

The area of the rectangle is the base times the height.

9 \times 4=36

The area of one of the triangles is half the base times the height.

\dfrac{1}{2} \times 5 \times 4 = 10

The other triangle must have that area too.

36+10+10=56

The area is 56 square centimeters.

Option 2:

We can use the area formula for the trapezoid.

A=\dfrac{b_1+b_2}{2} \times h

Where b_1 is the length of the shorter base
and b_2 is the length of the longer base
and h is the height.

The length of the shorter base is 9.
The length of the longer base is 9+5+5, or 19.

The height is 4.

A=\dfrac{9+19}{2} \times 4

=56

Same answer. The area is 56 square centimeters.

Both options are two acceptable ways the problem can be tackled.
7 0
3 years ago
Which is most likely the thickness of a penny when measured with a ruler? A) 0.016 in B) 1.5 mm C) 1.5 cm D) 1.55 mm
olganol [36]
The answer is B 1.5 mm
8 0
3 years ago
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Patrice has 18 square tiles that she will lay side-by-side to form a rectangle. Name the dimensions of three different rectangle
tekilochka [14]

Answer:

9x2, 6x3, 1x18

Step-by-step explanation:

9x2=18

6x3=18

1x18=18

5 0
2 years ago
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lesya [120]

Answer: Greater than

Step-by-step explanation: 0.012 is 12 hundreths

0.12 is 12 tenths

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Answer:

13

Step-by-step explanation:

6 0
3 years ago
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