Curriculum
Course: Mathematics — Second Preparatory
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Curriculum

Mathematics — Second Preparatory

Unit 1: Real Numbers

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Unit 2: Algebra

0/8

Unit 3: Geometry

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Unit 4: Statistics

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Quiz

The Isosceles Triangle — Lesson quiz

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  • Questions count: 5
  • Passing grade: 60%
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1.
An isosceles triangle has a vertex angle of 100°. Find each base angle.
50°
40°
80°
100°
2.
An isosceles triangle has a base angle of 50°. Find the vertex angle.
50°
100°
80°
130°
3.
An isosceles triangle has legs of 8 cm and a base of 5 cm. Find its perimeter.
13 cm
16 cm
40 cm
21 cm
4.
An isosceles triangle has legs of 13 cm and a base of 10 cm. Find its altitude from the vertex.
12 cm
8 cm
13 cm
√269 cm
5.
A triangle has two equal base angles. What can we conclude about its sides?
All three sides are different in length
The sides opposite these angles are equal, so the triangle is isosceles
The triangle must be right-angled
Its area must be zero
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