3 years ago

The sides of a triangle are 80 cm , 100 cm and 140 cm determine the radius of the inscribed circle

Mathematics

1 answer:

Klio2033 [76]3 years ago

5 0

The radius of circumscribing circle is 71.44 cm

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Plz help and explain thanks!!!

Mars2501 [29]

The answer to the question

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2 years ago

1. Janna works at a lab with a huge circular particle accelerator. It has a radius of 4 kilometers. What is the accelerator's di

blsea [12.9K]

Answer:

1. diameter=8 kilometres

2. area=98.96 inches

3. 37m

Step-by-step explanation:

1. diameter= 2*radius

2. area of sector=θ out of 360*π $r^{2}$ where θ is the angle

3. area of garden=π $r^{2}$

706.5=π $r^{2}$

$r^{2}$ =706.5/π

= 225(nearest whole)

r= $\sqrt{225}$ =15m

we now use Pythagoras theorem to find length of each pathway

$40^{2} =15^{2} +x^{2}$

1600=225+ $x^{2}$

$x^{2}$ =1600-225=1375

x= $\sqrt{1375}$ =37 m (to nearest whole)

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3 years ago

Elizabeth earned a grade of 85% on her multiple-choice science final that had a total of 160 problems. How many problems on the

Naily [24]

Answer:

135

Step-by-step explanation: Multiply 160 by 0.85(for 85%) and you get 135

7 0

3 years ago

A game board has 9 cards, and 3 say WIN. Michal picks 2 cards without replacing the first What is the probability that neither s

s2008m [1.1K]

Answer:

since there are 8 cards, and 2 say WIN, 6 of the 8 cards don't say WIN. You can express this as a ratio of 6:8 which equals 3:4, so the probability that neither says win is 75%.

Step-by-step explanation:

6 0

3 years ago

Simplify the expression and combine like terms.

Alenkinab [10]

Answer:

5x + 16

Step-by-step explanation:

the first thing you do in this equation is to distribute the 2 into x + 6

you get

2x + 12 + 3x + 4 = ?

then you must put the 2x and the 3x together

5x + 12 + 4

and you can then add the 12 and 4

5x + 16

4 0

2 years ago