eileenthecoolbean

16 Questions
0 Answers

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

3038

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