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!Angles:Triangles

Video37onwww.corbettmaths.com

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Question1: Findthesizeofeachmissingangle.

(a) (b) (c)

(d) (e) (f)

(g) (h) (i)

Question2: Findthesizeofeachmissingangle.(a) (b) (c)

(d) (e) (f)

Examples

Workout

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!Angles:Triangles

Video37onwww.corbettmaths.com

(g) (h) (i)

Question3: Shownisanequilateraltriangle. Findthesizey.

Question4: Findthesizeofeachmissingangle.(a) (b) (c)

(d) (e) (f)

(g) (h) (i)

© CORBETTMATHS 2016

� �

!Angles:Triangles

Video37onwww.corbettmaths.com

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Question1: Jacobhasmeasuredthethreeanglesinatriangle. Twoofhismeasurementsare45°and70° Whatisthethirdmeasurement?

Question2: Jamessaysthatatriangleisrightangled. Oliviasaysthatthesametriangleisisosceles. Theyarebothcorrect. Explainhow.

Question3: Theratioofthreeanglesinatriangleare1:2:3. Workoutthesizeofeachangle.

Question4: Anisoscelestrianglehasoneangleof52°. Writedownthepossiblesizesoftheothertwoanglesinthetriangle. Pair1……………and…………… Pair2……………and……………Question5: Showthesumofanglesxandyisalwaysequaltoanglez

Question6: Theratioofanglesinatriangleis2:3:5 Findthesizeofthesmallestangle.

Question7: Findthesizeofeachangle

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Answers

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