eileenthecoolbean

16 Questions
0 Answers

0

1430

1

+77

MAth

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

eileenthecoolbean 17 ago 2017

0

3429

1

+77

Geometry

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

eileenthecoolbean 17 ago 2017

+1

1

5694

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 16 ago 2017

+1

7815

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 15 ago 2017

0

918

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?

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eileenthecoolbean 14 ago 2017

0

1114

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 10 ago 2017

0

3256

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 lee mas ..

eileenthecoolbean 9 ago 2017

0

1299

2

+77

Geometry

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

RektTheNoob ●●

eileenthecoolbean 9 ago 2017

0

3197

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 lee mas ..

eileenthecoolbean 7 ago 2017

+1

2153

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 7 ago 2017

+1

1994

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 7 ago 2017

+1

2994

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 5 ago 2017

+1

3726

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 lee mas ..

eileenthecoolbean 20 jul 2017

+2

1111

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 14 jul 2017

+2

2051

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 14 jul 2017

+2

949

1

+77

geometry help plz?

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

eileenthecoolbean 14 jul 2017