eileenthecoolbean

16 Questions
0 Answers

0

1469

1

+77

MAth

Eight U.S. coins are worth a total of 38 cents. How many of the coins are dimes?

eileenthecoolbean Aug 17, 2017

0

3448

1

+77

Geometry

A (non-degenerate) triangle with integer sides has perimeter 12. How many such non-congruent triangles are there?

eileenthecoolbean Aug 17, 2017

+1

1

5712

2

+77

Geometry

Two altitudes of a triangle have lengths 12 and 14. What is the longest possible length of the third altitude, if it is a positive integer?

eileenthecoolbean Aug 16, 2017

+1

7830

2

+77

Geometry

Two sides of an acute triangle are 8 and 15. How many possible lengths are there for the third side, if it is a positive integer?

eileenthecoolbean Aug 15, 2017

0

961

5

+77

Geometry

By how many degrees does the measure of an interior angle of a regular octagon exceed the measure of an interior angle of a regular hexagon?

●●●●●

eileenthecoolbean Aug 14, 2017

0

1144

1

+77

Geometry

By how many degrees does the measure of an interior angle of a regular octagon exceed the measure of an interior angle of a regular hexagon?

eileenthecoolbean Aug 10, 2017

0

3282

1

+77

Rectangles, Geometry

I draw a $7 \times 11$ rectangle, and then another rectangle outside the first rectangle, so that the corresponding sides of the rectangles are parallel, and the distances between the corresponding sides is 1. Find the area of the border between the two read more ..

eileenthecoolbean Aug 9, 2017

0

1323

2

+77

Geometry

In quadrilateral $ABCD$, we have $AB = BC = CD = DA$, $AC = 14$, and $BD = 48$. Find the perimeter of $ABCD$.

RektTheNoob ●●

eileenthecoolbean Aug 9, 2017

0

3212

1

+77

Geometry

I draw a $7 \times 11$ rectangle, and then another rectangle outside the first rectangle, so that the corresponding sides of the rectangles are parallel, and the distances between the corresponding sides is 1. Find the area of the border between the two read more ..

eileenthecoolbean Aug 7, 2017

+1

2192

1

+77

parallelograms

In the diagram below, quadrilateral $ABDE$ is a parallelogram, and $BC = BD$. If $\angle CBD = 28^\circ$, then find $\angle BAE$, in degrees.

eileenthecoolbean Aug 7, 2017

+1

2026

1

+77

quadrilaterals

The angles of a quadrilateral are $x$, $5x + 15^\circ $, $3x - 25^\circ$, and $4x - 20^\circ $. Find the measure of the largest angle of the quadrilateral.

eileenthecoolbean Aug 7, 2017

+1

3037

2

+77

triangles

In $\triangle RST$, $RS = 13$, $ST = 14$, and $RT = 15$. Let $M$ be the midpoint of $\overline{ST}$. Find $RM$.
Thanks

eileenthecoolbean Aug 5, 2017

+1

3741

1

+77

triangles

In $\triangle ABC$, we have $AB = AC = 13$ and $BC = 10$. Let $M$ be the midpoint of $\overline{AB}$ and $N$ be on $\overline{BC}$ such that $\overline{AN}$ is an altitude of $\triangle ABC$. If $\overline{AN}$ and $\overline{CM}$ intersect at $X$, then read more ..

eileenthecoolbean Jul 20, 2017

+2

1156

1

+77

geometry question

Let $AB = 6$, $BC = 8$, and $AC = 10$. What is the area of the circumcircle of $\triangle ABC$ minus the area of the incircle of $\triangle ABC$?

eileenthecoolbean Jul 14, 2017

+2

2077

1

+77

Another geometry question... Help plz

Quadrilateral $ABCD$ is a square, and segment $AE$ is perpendicular to segment $ED$. If $AE = 8$ units and $DE = 6$ units, what is the area of pentagon $AEDCB$, in square units?

eileenthecoolbean Jul 14, 2017

+2

991

1

+77

geometry help plz?

Find the inradius of $\triangle JKL$ if $JK=JL=17$ and $KL = 16$.

eileenthecoolbean Jul 14, 2017