Question

I am doing geometry, this is a review for an exam, can someone help me?

Answer 1

I have 18 questions

Answer 2

Look at the figure.

Under what conditions will the triangle formed by the three squares be a right triangle?

Area of Square 2 is equal to the perimeter of Square 3.

Area of Square 3 is equal to the perimeter of Square 1.

Area of Square3 is equal to the sum of the area of Square 1 and the area of Square2.

Area of Square2 is equal to the sum of the area of Square 1 and the area of Square3

Answer 3

I am pretty sure it is D

Answer 4

it is, by pythagoras

Answer 5

So which answer would it be then?

Answer 6

square of hypotenuse =sum of squares of other two sides

Answer 7

so I'm still confused? can you explain?

Answer 8

pythagoras says for a right triangle with sides a,b and hypotenuse c:

a^2 + b^2 = c^2

notice that a^2 is the formula for the area of a square that has a side=a
same for b^2, and c^2

in other words, you can think of this formula as saying the area of the squares with side a and side b will add up to the area of the square with side c

Answer 9

a^2 + b^2 = c^2 is only true for a right triangle.

Answer 10

so which answer would it be? can you explain the answer? I am kindof torn

Answer 11

is the answer choice A ?

Answer 12

I WAS LOOKING AT IT WRONG THIS WHOLE TIME!!! Thinking that the area was what I needed but I always get area and perimeter mixed up! Haha, sorry, I understand it now:) thank you! If I need help with another can you help me?

Answer 13

the answer has nothing to do with perimeter (sum of the length of the sides )

it is *only area* (length*width of a rectangle, or just side*side for a square -- because the sides are equal)

to answer: which square is on the hypotenuse? Its area will be the sum of the squares on the other two sides.

Answer 14

Okay, thank you:) I have another one that is stumping me? care to help @phi ?

Answer 15

First, what did you get for the answer to this one ?

Answer 16

I chose answer A

Answer 17

It is not A.

Answer 18

If it is not A then it should be answer D

Answer 19

to answer: which square is on the hypotenuse? Its area will be the sum of the squares on the other two sides.

Answer 20

Oh no, D would be an equilateral triangle, I am looking for a right triangle. It would be Answer B correct?

Answer 21

@phi?

Answer 22

Okay here's another question:

Answer 23

Which reason best fits statement 2?

AAS postulate

Pythagorean Theorem

Triangle Proportionality Theorem

SSS postulate