Courselo

Home
Learn
Practice(sign in to use)
Mock exams
Review(sign in to use)

Plan(sign in to use)
Progress(sign in to use)
Tutor(sign in to use)

Your plan

Save your progressA free account keeps your answers, predicts your score and builds a daily plan.Create a free account

Loading lesson

Loading your exam home

Home
Learn
Practice, sign in to use
Mocks
Review, sign in to use

Loading lesson

Solving problems involving circles, arcs, and sectors · PSAT · Courselo

Courselo

PSAT
Learn
Geometry and trigonometry

Solving problems involving circles, arcs, and sectors

Geometry and trigonometry · Lesson 4 of 4

Lesson 4 of 4

Ask a tutor

Unit 8

Geometry and trigonometry

4 lessons · 5 h 30 min of study

Finding area, perimeter, and volume1 h 15 min of study
Reasoning with angles, triangles, similarity, and coordinate geometry1 h 30 min of study
Using right triangles, the Pythagorean theorem, and trigonometry1 h 30 min of study
Solving problems involving circles, arcs, and sectorsReading · 0%

This unit is ≈8% of the PSAT, across 4 lessons. Full syllabus

Lesson 4 of 4 · Geometry and trigonometry

Solving problems involving circles, arcs, and sectors

3 quick checks≈2% of the testCore: Core: tested on most papers

Reading is free. Sign in to tick off lessons, keep your place and track your mastery.

By the end you’ll be able to

Use the relationships among radius, diameter, circumference, and area to solve problems involving circles.
Determine arc measures from central angles and use arc measures to find central or inscribed angle measures.
Calculate arc length and sector area from a radius and a central angle.

Practice this skill

Adaptive questions on solving problems involving circles, arcs, and sectors.

Practise this topic

0% read

Done

Apply relationships involving inscribed angles, central angles, chords, and intercepted arcs to find unknown measures.

Solve problems involving circles in context, including interpreting diagrams with tangents, secants, or composite figures when only standard circle relationships are required.

This lesson hasn’t been written yet

PSAT lessons are written from the official syllabus the first time a learner opens them, then saved for everyone. Sign in and this one is written for you in a minute or two. It’s free.

PreviousUsing right triangles, the Pythagorean theorem, and trigonometry FinishedBack to the syllabus