Isosceles triangle abc has a perimeter of 96 centimertes the base of triangle ac and the mesurments at 24 centimeters. what is the measurement of ab.

AB= 36 degrees

Step-by-step explanation: AB + BC + AC = 96

but AB = AC  [isosceles triangle]

2AB + 24 = 96

2AB = 96 - 24 = 72

AB = 72/2 = 36

AB = 36 degrees.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.