2 years ago

∆XWZ≈∆ by __

Mathematics

1 answer:

Sergeeva-Olga [200]2 years ago

6 0

I think triangle ZYX by asa

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In triangle ABC, AB = 11 cm, BC = 9 cm and CA = 10 cm. Find the area of triangle ABC.

max2010maxim [7]

Answer:

Area = 42.43 square cm

Step-by-step explanation:

Using Heron's Formula :

$Area = \sqrt{s\times (s-a) \times (s-b) \times(s -c)} \ , \ where \ s \ =\ \frac{a+ b+ c}{2}$

Find Area :

$s = \frac{11 + 9 + 10 }{2} = \frac{30}{2} = 15$

$Area = \sqrt{15 \times ( 15 - 11 ) \times { (15 - 9 ) \times ( 15 -10)}\\\\$

$= \sqrt{15 \times 4 \times 6 \times 5}\\\\=\sqrt{1800}$

$= 42 . 43 \ cm^2$

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2 years ago

On the packaging for a triangular sail, the edge measurements for the sail are listed as

Colt1911 [192]

Answer: It is an obtuse triangle I think beause more than one side is more than a 90 degree angle

Step-by-step explanation:

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2 years ago

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Need help please?!?!?! Extra points!!!

andrey2020 [161]

Answer:

4.19

Step-by-step explanation:

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3 years ago

What is -0.75 - 0.4 simplified

anzhelika [568]

Answer:

-1.15

Step-by-step explanation:

Subtract 0.4 from − 0.75 .

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2 years ago

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The question is above in the picture

anzhelika [568]

Yea his answer is right ^^

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3 years ago

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