Triangle is isosceles.
Angle = 32° and .
Find angle .
Angle = .................................................Â
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Syllabus Edition
First teaching 2023
First exams 2025
Triangle is isosceles.
Angle = 32° and .
Find angle .
Angle = .................................................Â
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Work out the value of.
Give a geometrical reason for your answer.
= .................... because .......................................................................
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A student measures the angles in a triangle as 55°, 85° and 50°.
Explain why the student is incorrect.
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The diagram shows an isosceles triangle.
Find the value of .
= .................................................Â
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is a straight line.
Find the value of .
...................................................
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The diagram shows an isosceles triangle and a straight line.
Work out the value of .
...............................[2]
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Work out the value of
Give reasons for your answer.
............................ because ....................................................................................................
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is an isosceles triangle and is a straight line.
Find the value of .
= ...................................................Â
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is an isosceles triangle.
is a straight line.
Find the value of .
= ..............................................Â
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is a straight line and is an isosceles triangle.
Find the value of.
= .................................................Â
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In the triangle and angle .
is a straight line.
Work out angle .
Angle = ..................................................Â
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A triangle is isosceles.
One of its angles is 96°.
Find the other two angles.
........................ and ........................Â
Find the value of .
= ...................................................Â
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The diagram shows a trapezium.
Work out the value of .
= ..................................................
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Kim knows that one angle of an isosceles triangle is 48°.
He says that one of the other angles must be 66°.
Explain why Kim is wrong.
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The diagram shows triangle and a straight line .
is a point on .
Angle = 25°, angle = 32° and .
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The diagram shows a triangle.
Use the diagram to write down an equation and solve it to find the value of .
 = .................................. [4]
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The diagram shows an isosceles triangle, .
is a straight line.
Find the value of .
................................ [2]
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