1)In triangle ABC, $AB = BC = 17$ and AC = 16 Find the circumradius of triangle

2)Angle bisectors line AX and line BY of triangle ABC meet at point I. Find angle C in degrees, if angle AIB = 109

[asy]

pair A,B,C,X,Y,I;

A= (0,0);

B = (1,0);

C = (0.6,0.5);

X = intersectionpoint(B--C , A -- (bisectorpoint(B,A,C)));

Y = intersectionpoint(A--C, B -- scale(6)*( (bisectorpoint(C,B,A)) - B));

I = intersectionpoint(A--X, B--Y);

draw(X--A--C--B--Y);

draw(A--B);

label("$A$",A,SW);

label("$B$",B,SE);

label("$C$",C,N);

label("$I$",I,S);

label("$X$",X,NE);

label("$Y$",Y,NW);

[/asy]

3)A certain square and a certain equilateral triangle have the same perimeter. The square and triangle are inscribed in circles, as shown below. If A is the area of the circle containing the square, and B is the area of the circle containing the triangle, then find A/B

4) $\overline{BY}$ and $\overline{CZ}$ are angle bisectors of triangle $ABC$ that meet at I, with $CY = 4$, $AY = 6$, and $AB = 8$. Find

$BZ$

.

Guest Dec 1, 2019

#1**0 **

im in the same class and i need help on this

A triangle has side lengths of 6, 8, and 10. Let a be the area of the circumcircle. Let b be the area of the incircle. Compute a-b

Guest Dec 1, 2019

#3**-2 **

help pleeeeez!! I really need the answers!!! Just the answers, I don't need explanation! chipll, Melody, pleeeeez helllp!

Guest Dec 1, 2019

#6**+2 **

If you say:

DUE TODAY

Melody's just gonna not help (By giving you the answers)...

That's the way I see it.

She's probably gonna give you a couple of hints to solve it...

tommarvoloriddle
Dec 1, 2019

#5**+1 **

Uhm, guys...

Isn't it not very good to just ask for answers...

I don't know, I thought that was the way things were run...

tommarvoloriddle Dec 1, 2019