2 years ago

Triangle $ABC$ is isosceles with $AB = BC.$ If $AC = 20$ and $[ABC] = 240,$ then find the perimeter of triangle $ABC.$

Mathematics

2 answers:

gtnhenbr [62]2 years ago

5 0

The perimeter of triangle ABC is 84.

ollegr [7]2 years ago

3 0

Answer:

C is the Answer

Step-by-step explanation:

You might be interested in

Please help ASAP thank you!

Advocard [28]

Answer:

10√30

Step-by-step explanation:

√5*√12*√50

√12=2√3

√50=5√2

2*5√5*√3*√2

10√5*√3*√2

10√5*3*2

10√30

6 0

3 years ago

Read 2 more answers

Please help!!<br> I don’t know what to do

ira [324]

Answer:

x = 14.4

Step-by-step explanation:

Similar means that the figures are proportional to each other. Because of this, we can form a problem. $\frac{9}{5}$ (the short side lengths) = $\frac{x}{8}$ (the long side lengths). Now we can solve this by cross-multiplying. If we multiply 9 · 8 we get 72, and 5 · x is 5x. 72 = 5x. Now divide both sides by 5. 72 ÷ 5 = 14.4. Therefore, x should be equal to 14.4. Does this make sense?