Make a test

Multi-select

In a right triangle the legs measures a and b, the ipotenuse c. Which are the right formula?

a2+b2=c2

 a2+c2=b2

 a= b2- c2

 b= c2-a2



The Pythagorean theorem keeps in relations the legs of:

all the triangles

Equilateral triangles

right triangles

Isosceles Triangles. 



Which words are missed?

in a ........................ triangle the sum of the ............................ of the lengths of the .................. equal the ..................... of the square of the length of the ...........................

right, ipotenuse, difference, legs, square

ipotenuse, legs, isosceles, sum, squares

right, squares, legs, sum, ipotenuse



If ABCD is right trapezius, which triangles in the picture are right triangle? 

ADC

ABC

DBC

BHC



which of the following triangles are right triangle?

AOC

ACB

ACH

OBC



 In a right triangle the measures of the legs are 21 cm and 28 cm, the ipotenuse measure

35 cm

49 cm

37 cm

29 cm



In a right triangle the measure of the ipotenuse is 30 cm and one leg is 18 cm, the second leg measure:

18 cm

24 cm

20 cm

22 cm



A stair with 8 steps height 16 cm and wide 25 cm has to cover with a wood table. which is the length of the table?

 

about 312 cm

about 238 cm

about 136 cm

about 108 cm



Maura has got the bench next to the wall of the classroom. He leans a r10 cm ruler vertically. the ruler slips down of 2 cm, as you can see in the picture. how many cm the foot of the ruler has moved away from the wall?

4 cm 

6 cm

5 cm

3,3 cm