The dimensions of triangle B are twice the dimensions of triangle A. The area of triangle A is 28 cm2.

What is the area of triangle B?
56 cm2
112 cm2
90 cm2
135 cm2

Question

The dimensions of triangle B are twice the dimensions of triangle A. The area of triangle A is 28 cm2.

What is the area of triangle B?
56 cm2
112 cm2
90 cm2
135 cm2

anonymous · Answer

https://app126.studyisland.com/pics/115360triangle2.png @jim_thompson5910

anonymous · Answer

@jim_thompson5910

anonymous · Answer

@jim_thompson5910

dtan5457 · Answer

Just test it accordingly

if the area of the first triangle is 28, the dimensions must be 7,8

make that a scale factor of 2 and you get 14, 16

knowing that the base and height are 14, 16 get your new area.

anonymous · Answer

I'm so confused.

lυἶცἶ0210 · Answer

But that's all we have to go on

dtan5457 · Answer

The area of a triangle is

(b x h)/2

solve knowing that b,h is 14, 16

lυἶცἶ0210 · Answer

Oh! I here's another one that might make sense. Since the dimensions of B are 2 times A, that means 2b=b and 2h=h

anonymous · Answer

So. I just have to figure out what x is?

anonymous · Answer

@lυἶცἶ0210

dtan5457 · Answer

It's really not that hard

just multiply 14 and 16, and finally divide by 2 lmao

anonymous · Answer

@jim_thompson5910

anonymous · Answer

112. Which isn't an answer choice

anonymous · Answer

@dtan5457

anonymous · Answer

@FibonacciChick666

anonymous · Answer

@MilkNCookies @TheSmartOne

dtan5457 · Answer

"56 cm2
112 cm2
90 cm2
135 cm2"

ok man

fibonaccichick666 · Answer

can we restart with a small question?  What is the formula for the area of a triangle?

anonymous · Answer

WOW. I already answered this question. And totally forgot

thesmartone · Answer

~I am not needed anymore it seems~