Help! giving brainlest thx!

The first one is an Obtuse triangle and the second is an Acute isosceles triangle :)

Step-by-step explanation:

Hope this helped!

The first answer is the last one and the other is the third

Step-by-step explanation:

the the first one is in obtuse because this wider than 90° and the other one is shorter than 90°

2 5 /14

Step-by-step explanation:

−10 2/7 ÷ (−4 4/11)

Change to improper fractions

−10 2/7  = - (7* 10+2)/7 =-72/7

-4 4/11 = -( 11*4+4) = -48/11

-72/7 ÷ -48/11

Copy dot flip

-72/7 * -11/48

Canceling an 8 from the top left and the bottom right

-9/7 * -11/6

Canceling a 3 from the top left and the bottom right

-3/7 * -11/2

33/14

Now we change it back to a mixed number

14 goes into 33 2 times 2*14 = 28

33-28 = 5  this goes over the denominator

2 5 /14