body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} You must have JavaScript enabled to use this site.

Expand menu

Minimize

Start chapters

Home

History

History

{{ item.displayTitle }}

No history yet!

Progress & Statistics

Progress

Student

Teacher

{{ courseTrack.displayTitle }}

{{ statistics.percent }}%

Sign in to view progress

{{ printedBook.courseTrack.name }} {{ printedBook.name }}

{{ book.name }}

{{ s.number }} {{ s.name }} {{ 'ml-solutions-page-short' | message }}.{{ s.pages.range }}

{{ e.name }} {{ e.name }}

Describing Triangles

{{ 'mldesktop-placeholder-grade-tab' | message }}



{{ 'mldesktop-placeholder-grade' | message }} {{ article.displayTitle }}!

{{ grade.displayTitle }}

{{ exercise.headTitle }}

{{ 'ml-tooltip-premium-exercise' | message }}

{{ 'ml-tooltip-recommended-exercise' | message }}

{{ 'ml-tooltip-programming-exercise' | message }} {{ 'course' | message }} {{ exercise.course }}

{{ 'ml-heading-exercise' | message }} {{ focusmode.exercise.exerciseName }}