3 years ago

Which methods can be used to show that a quadrilateral is a rectangle?\

Mathematics

1 answer:

Daniel [21]3 years ago

7 0

Show that the co-interior should equal to 360 degrees

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2. Derek is an HVAC technician. He worked 30 hours and made $600. How much per hour does Derek make?

Cloud [144]

Answer:

$20.00

Step-by-step explanation:

600 ÷ 30 = 20

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3 years ago

What do I next please

maria [59]

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3 years ago

1. Devin is making a candle by pouring melted wax into a mold in the shape of a square pyramid. Each side of the base of the pyr

Cloud [144]

Answer:

Devin will need 9 cubes of wax.

Step-by-step explanation:

To find the volume of the pyramid, you use (area of the base)* height of the pyramid divided by 3. You know the volume of a cube of wax is 32 cm^3. The volume of your pyramid is 270 cm^3. 270/32=8.4375.

Once you get 8.4375 cubes, you round to the next whole number, which is nine.

4 0

3 years ago

Read 2 more answers

In triangle DEF, DK is the angle bisector of angle EDF. If EK=2, FK=5, and DF=10, what is the length of DE?

fiasKO [112]

Answer:

4 units

Step-by-step explanation:

In triangle DEF, DK is the angle bisector of angle EDF.

<u>Angle bisector theorem</u> states that if a ray bisects an angle of a triangle, then it divides the opposite side into segments that are proportional to the other two sides.

Hence,

$\dfrac{DE}{DF}=\dfrac{EK}{KF}$

Thus,

$\dfrac{DE}{10}=\dfrac{2}{5}\\ \\5DE=2\cdot 10\\ \\5DE=20\\ \\DE=4$

6 0

4 years ago

Find the value of x which makes the area of this triangle equal 72

Maslowich

The Answer To Your Question Would Be 12

8 0

3 years ago